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Sleeptracker by Serta Simmons vs. Oura Ring
Sleeptracker by Serta Simmons vs. Oura Ring

Sleeptracker by Serta Simmons vs. Oura Ring

I decided to review Sleeptracker by Serta Simmons after my initial reviews of three of the most common wearable technologies utilized in the biohacking community: the Oura Ring, the Biostrap, and the WHOOP strap. I chose these, as they are heavily endorsed by influencers, but none of them have the mainstream recognition of the Fitbit or the Apple Watch. Also, I was already familiar with both the Fitbit and Apple Watch since I have owned both.

See the results of the Oura Ring vs. Biostrap vs. WHOOP below:

I will circle back to testing those products in a more rigorous way later on.

After showing how the Oura Ring thoroughly mopped the floor with Biostrap and WHOOP, I decided to compare it against another technology that claims to be validated with polysomnography: the Sleeptracker by Serta Simmons. Here is what Fullpower, the company that created the technology used in the Sleeptracker app, claims on its website:

Medical grade accuracy. For example, the Sleeptracker®-AI by Serta Simmons is clinically proven to monitor sleep patterns with an accuracy of over 90% for 90% of the population compared to medically operated professional polysomnography.”

Originally, I had planned to pit all four previously tracked technologies against each other, but decided against it for a few reasons: I wasn’t happy with Biostrap for many reasons detailed in my four-part review, and it left me with raw skin as well, and WHOOP wouldn’t pair after 20 days of not being used. Although I had followed all troubleshooting steps to no avail, the pairing lights wouldn’t come on with repeated tapping. At first, I had gotten nowhere with WHOOP customer service, so I decided to cancel my 6-month membership. WHOOP makes you pay out your commitment to turn off auto-renew. Meaning that if you want to try the device for 6 months and decide after 2 months you don’t like the WHOOP strap and decide to cancel your membership before its renewal, they charge you a lump sum for the remaining time. This is another entrapment tactic used during negative billing. However, WHOOP eventually sent me a new strap after I had cancelled the membership, and I plan to use it for future experiments.

Sleeptracker vs. Oura Ring

First, let’s take a look at the user-friendliness and features of each device:

Feature

Oura Ring

Sleeptracker

Cost

$299 USD*
*starting at

$147.98 USD

Need to Charge

*plugs in

Need to Wear

Travel-friendly

Tracking

Sleep Time

Sleep Score

Rapid Eye Movement (REM) Time

Deep Sleep Time (Deep)

Heart Rate Variability (HRV)

Resting Heart Rate (RHR)

Average Heart Rate (Avg HR)

Body Temperature

Respiratory Ratio (RR)

*as a rounded whole number

Latency

Time in Bed

Active Calories


As the above shows, Oura offers significantly more features than Sleeptracker app, but it is also over double the price. What matters the most is sleep tracking accuracy, so I set out to test the two devices each against each other for 30 days with my wife. Moreover, I made an effort to note the time I went to bed and woke up for as many days as possible (as did my wife), while noting as many observations as possible.

Here is my data:

Alex’s Data

Day

Oura

Sleeptracker

Notes

1

6hr 24min total sleep

Sleep score: 74
RR: 14.6

Body temp: +0.5°C

REM: 1hr 1min (15%)

Deep: 1hr 51min (27%)

HRV: 80

RHR: 42

7hr 53min total sleep

Sleep score: 75
RR: 15

REM: 1hr 37min

Deep: 33min

Avg HR: 45




I went to bed between 11:15 and 11:20 PM. Oura recorded it as 11:28 PM, Sleeptracker as 12:28 AM.


I got out of bed at 8:35 AM. Oura recorded 8:39 AM, Sleeptracker recorded 8:41 AM.




2

7hr 25 min total sleep

Sleep score: 79
RR: 14.0

Body temp: -0.4°C

REM: 1hr 24min (19%)

Deep: 2hr 11min (29%)

HRV: 95

RHR: 40

8hr 38min total sleep

Sleep score: 84
RR: 14

REM: 1hr 42min

Deep: 1hr 15min

Avg HR: 43





I went to bed at 11:15 PM. Oura recorded it as 11:28 PM, Sleeptracker at 11:31 PM.

I got out of bed at 8:15 AM. Oura recorded it as 8:16 AM; Sleeptracker as 8:19 AM.

Oura recorded me as me awake for 1hr 23min; Sleeptracker had me awake for 10 min.

I woke up multiple times. The cat threw up. I responded to several emails at ~6 AM. Oura was far more accurate on this day.

3

7hr 7min total sleep

Sleep score: 77
RR: 14.9

Body temp: +0.3°C

REM: 1hr 27min (20%)

Deep: 2hr 4min (29%)

HRV: 87

RHR: 41




8hr 4min total sleep

Sleep score: 81
RR: 15

REM: 2hr 3min

Deep: 1hr 5min

Avg HR: 46





I went to bed at 12:25 AM and woke up at 8:48 AM.

Oura recorded me as having gone to bed at 12:29 AM with a 9 min latency and woken up at 8:50 AM. Oura had recorded me as awake for 1hr 13 min.

Sleeptracker recorded me as going to bed at 12:40 AM and waking up at 8:54 AM. Sleeptracker had me awake for 10min at the start and end of my sleep. I checked emails and responded to many of them, no less than four times throughout the night.



4

6hr 3min total sleep

Sleep score: 71
RR:14.8

Body temp: +0.2°C

REM: 0hr 33min (9%)

Deep; 1hr 56min (32%)

HRV: 91

RHR: 41

6hr 32min total sleep

Sleep score: 66
RR: 14

REM: 1hr 3min

Deep: 34min

Avg HR: 46



I was in bed at 12:14 AM and got up at 7:20 AM; the first alarm was at 7:10 AM.

Oura had me in bed at 12:15 AM and awake at 7:11 AM.


Sleeptracker had me in bed at 12:25 AM and awake at 7:12 AM.

Oura had me awake 52min, Sleeptracker 15min. I used the washroom once and checked emails in the night twice. The real value was likely somewhere between the two.

5

6hr 54min total sleep

Sleep score: 77
RR: 13.4

Body temp: -0.6°C

REM: 1hr 8min (16%)

Deep: 1hr 51min (27%)

HRV: 102

RHR: 37

7hr 45min total sleep

Sleep score: 79
RR: 13

REM: 2hr 16min

Deep: 1hr 3min

Avg HR: 39



I went to bed at 12:20 AM and woke up at 8:20 AM; I hit the snooze once.

Oura thought I was in bed at 12:08 AM, and woke up at 8:25 AM.

Sleeptracker thought I went to bed at 12:27 AM and woke up at 8:22 AM.

Both within reasonable accuracy of each other.

6

5hr 59min total sleep

Sleep score: 69
RR: 13.5

Body temp: -0.9°C

REM: 46min (13%)

Deep: 1hr 51min (31%)

HRV: 88

RHR: 36

6hr 44min total sleep

Sleep score: 69
RR: 13

REM: 1hr 42min

Deep: 1hr 3min

Avg HR: 41



I went to bed at 12:25 AM and woke up at 7:58 AM.

Oura had me in bed at 12:38 AM and awake at 7:58 AM. I did toss and turn quite a bit.

Sleeptracker had me in bed at 12:48 AM and awake at 7:56 AM.

In the night, I got up and used the bathroom at least once; I also answered and read emails twice. Oura recorded 1hr 20min awake time; Sleeptracker recorded 24min. It was definitely longer than 24min; I am not sure if it reached 1hr 20min.

7

8hr 17min total sleep

Sleep score: 87
RR: 14.0

Body temp: +0.2°C

REM: 1hr 43min (21%)

Deep: 2hr 35min (31%)

HRV: 67

RHR: 46

8hr 11min total sleep

Sleep score: 77
RR: 13

REM: 2hr 0min

Deep: 1hr 10min

Avg HR: 52



I did not record my times of going to bed and waking up.

8

7hr 23min total sleep

Sleep score: 82
RR: 14.8

Body temp: -0.7°C

REM: 1hr 36min (22%)

Deep: 2hr 41min (36%)

HRV: 72

RHR: 48

7hr 50min total sleep

Sleep score: 75
RR: 14

REM: 2hr 1min

Deep: 57min

Avg HR: 51

I forgot to record my times of going to bed and waking up.

9

6hr 27min total sleep

Sleep score: 80
RR: 14.0

Body temp: -0.0°C

REM: 1hr 31min (23%)

Deep: 2hr 33min (40%)

HRV: 64

RHR: 46

7hr 0min total sleep

Sleep score: 71
RR: 13

REM: 1hr 32min

Deep: 57min

Avg HR: 52

I put my phone down at 11:52 PM.

I woke up to start reading emails in bed at 7:21 AM.

Oura recorded me as trying to sleep at 11:56 PM and awake at 7:24 AM.

Sleeptracker had me in bed at 12:06 AM and awake at 7:23 AM.

Oura recorded me as awake for 1hr 1min.
Sleeptracker had me awake for 17min.

I was up twice to use the washroom and two other times answering emails. Not sure if I was awake for an hour, but it was longer than 17min.

10

6hr 57min total sleep

Sleep score: 73
RR: 13.9

Body temp: -0.4°C

REM: 54min (133%)

Deep: 2hr 28min (35%)

HRV: 84

RHR: 43

7hr 57min total sleep

Sleep score: 79
RR: 13

REM: 2hr 9min

Deep: 51min

Avg HR: 47

I was awakened a dozen times throughout the time; my back was out.

Oura recorded me as awake for 1hr 1min.

Sleeptracker recorded me as awake for 10min.

The real value was far closer to Oura’s recorded data than to Sleeptracker’s.

11

6hr 8min total sleep

Sleep score: 72
RR: 14.9

Body temp: +0.5°C

REM: 1hr 16min (20%)

Deep: 1hr 27min (24%)

HRV: 86

RHR: 48

8hr 48min total sleep

Sleep score: 79
RR: 14

REM: 1hr 55min

Deep: 1hr 9min

Avg HR: 57

I put my phone down at 10:33 PM and was awake and reading emails 7:21 AM.

Oura recorded me as “trying to sleep” at 10:29 PM and awake at 7:14 AM.


Sleeptracker had me asleep at 10:30 PM, while I was still reading, and asleep until 7:50 AM, when I had been awake for half an hour.

It was very hot, and I woke up all through the night. Oura recorded me as awake for 2hr 36min, which is probably too long; Sleeptracker recorded me as awake for 32min, which is not accurate, without any doubt.

12

7hr 43min total sleep

Sleep score: 79
RR: 14.8

Body temp: +0.2°C

REM: 1hr 3min (20%)

Deep: 2hr 12min (24%)

HRV: 101

RHR: 43

7hr 53min total sleep

Sleep score: 77
RR: 14

REM: 2hr 15min

Deep: 1hr 1min

Avg HR: 47

I put my phone down at 10:59 PM and awoke to alarm at 8:15 AM.


Oura had me trying to go to sleep at 10:49 PM and awake at 8:15 AM.

Sleeptracker had me going to sleep at 11:04 PM and awake at 7:19 AM.

Oura was far more accurate.

13

7hr 21min total sleep

Sleep score: 83
RR: 14.0

Body temp: +0.2°C

REM: 1hr 9min (16%)

Deep: 2hr 0min (27%)

HRV: 76

RHR: 42

7hr 43min total sleep

Sleep score: 73
RR: 13

REM: 2hr 15min

Deep: 40min

Avg HR: 47

I put my phone down at 11:02 PM and woke up at 7:18 AM.


Oura recorded me as trying to sleep at 10:58 PM and awake at 7:19 AM.

Sleeptracker had me trying to sleep at 11:16 PM and awake at 7:22


*Large discrepancy in REM and Deep sleep

14

7hr 42min total sleep

Sleep score: 83
RR: 13.9

Body temp: +0.0°C

REM: 1hr 0min (13%)

Deep: 2hr 41min (35%)

HRV: 71

RHR: 41

7hr 56min total sleep

Sleep score: 78
RR: 14

REM: 1hr 46min

Deep: 1hr 10min

Avg HR: 47

I put the phone down at 11:00 PM and woke up at 7:35 AM.


Oura recorded me as being in bed at 11:15 PM and awake at 7:35 AM.

Sleeptracker recorded me as being in bed at 11:26 PM and awake at 7:38 AM.

15

5hr 6min total sleep

Sleep score: 62
RR:14.8

Body temp: -0.6°C

REM: 59min (20%)

Deep; 1hr 54min (37%)

HRV: 63

RHR: 43

5hr 8min total sleep

Sleep score: 78
RR: 14

REM: 1hr 16min

Deep: 46min

Avg HR: 49

I put my phone down at 1:48 AM and was awake at 7:42 AM.

Oura recorded me as being in bed at 2:08 AM and awake at 7:42 AM.


Sleeptracker recorded me as being in bed at 2:07 AM and awake at 7:25 AM.

16

6hr 17min total sleep

Sleep score: 76
RR: 14.6

Body temp: -0.2°C

REM: 58min (15%)

Deep: 2hr 13min (35%)

HRV: 70

RHR: 44

6hr 30min total sleep

Sleep score: 71
RR: 14

REM: 1hr 20min

Deep: 1hr 23min

Avg HR: 49

I put my phone down at 12:12 AM and woke up at 7:15 AM.


Oura recorded me as being in bed at 12:17 AM and awake at 7:16 AM.


Sleeptracker recorded me as being in bed at 12:30 AM and awake at 7:10 AM.

17

5hr 52min total sleep

Sleep score: 78
RR: 15.1

Body temp: +0.1°C

REM: 56min (16%)

Deep: 2hr 39min (45%)

HRV: 71

RHR: 46

6hr 5min total sleep

Sleep score: 66
RR: 14

REM: 1hr 33min

Deep: 55min

Avg HR: 48

18

7hr 52min total sleep

Sleep score: 87
RR: 13.4

Body temp: -0.4°C

REM: 1hr 37min (21%)

Deep: 1hr 25min (18%)

HRV: 103

RHR: 37

8hr 42min total sleep

Sleep score: 82
RR: 13

REM: 1hr 52min

Deep: 1hr 21min

Avg HR: 40

I put my phone down at 10:46 PM and woke up at 7:58 AM.


Oura recorded me as being in bed at 10:46 PM and awake at 7:58 AM.


Sleeptracker recorded me as being in bed at 10:52 PM and awake at 7:58 AM.

19

8hr 8min total sleep

Sleep score: 86
RR: 15.1

Body temp: +0.3°C

REM: 1hr 20min (17%)

Deep: 2hr 2min (25%)

HRV: 70

RHR: 43

8hr 35min total sleep

Sleep score: 82
RR: 15

REM: 1hr 55min

Deep: 1hr 14min

Avg HR: 49

I put my phone down at 11:02 PM and was awake at 8:03 AM.

Oura recorded me as being in bed at 10:57 PM and awake at 8:03 AM.


Sleeptracker recorded me as being in bed at 11:01 PM and awake at 8:01 AM.

20

6hr 25min total sleep

Sleep score: 79
RR: 14.1

Body temp: -0.4°C

REM: 1hr 31min (24%)

Deep: 1hr 48min (28%)

HRV: 81

RHR: 41

6hr 33min total sleep

Sleep score: 71
RR: 13

REM: 1hr 17min

Deep: 1hr 20min

Avg HR: 44

I put my phone down at 11:32 PM and was awake at 7:03 AM.

Oura had me in bed at 11:27 PM and awake at 7:04 AM.


Sleeptracker had me in bed at 11:56 PM and awake at 6:39 AM.

Oura was far more accurate for sleep time today.

21

7hr 42min total sleep

Sleep score: 88
RR: 14.5

Body temp: -0.3°C

REM: 1hr 34min (20%)

Deep: 3hr 8min (41%)

HRV: 82

RHR: 42

8hr 35min total sleep

Sleep score: 85
RR: 14

REM: 2hr 13min

Deep: 1hr 39min

Avg HR: 47

I put my phone down at 10:58 PM and was awake at 7:54 AM.

Oura recorded me as being in bed at 11:00 PM and awake at 7:04 AM.


Sleeptracker recorded me as being in bed at 11:13 PM and awake at 7:58 AM.

Oura was far more accurate for measuring sleep time on this day.

22

8hr 7min total sleep

Sleep score: 78
RR: 15.9

Body temp: +0.1°C

REM: 2hr 35min (32%)

Deep: 53min (11%)

HRV: 16

RHR: 64

9hr 10min total sleep

Sleep score: 88
RR: 16

REM: 1hr 50min

Deep: 1hr 43min

Avg HR: 73

23

8hr 5min total sleep

Sleep score: 85
RR: 15.4

Body temp: +0.6°C

REM: 1hr 3min (13%)

Deep: 2hr 36min (32%)

HRV: 90

RHR: 46

8hr 20min total sleep

Sleep score: 82
RR: 15

REM: 1hr 41min

Deep: 1hr 9min

Avg HR: 51

24

7hr 26min total sleep

Sleep score: 77
RR: 14.9

Body temp: -0.1°C

REM: 1hr 4min (14%)

Deep: 1hr 46min (24%)

HRV: 114

RHR: 40

8hr 13min total sleep

Sleep score: 76
RR: 14

REM: 2hr 14min

Deep: 1hr 4min

Avg HR: 42

I put my phone down at 12:07 AM and was awake at 9:19 AM.

Oura had me in bed at 12:04 AM and awake at 9:19 AM.


Sleeptracker had me in bed at 12:15 AM and awake at 9:20 AM.

Oura was slightly more accurate for sleep time on this day.

25

7hr 9min total sleep

Sleep score: 83
RR: 13.4

Body temp: +0.5°C

REM: 1hr 33min (22%)

Deep: 2hr 47min (39%)

HRV: 98

RHR: 37

7hr 46min total sleep

Sleep score: 74
RR:13

REM: 1hr 36min

Deep: 1hr 1min

Avg HR: 41

I put my phone down at 12:03 AM and was awake at 8:34 AM.

Oura recorded me as being in bed at 11:55 PM and awake at 8:34 AM.


Sleeptracker recorded me as being in bed at 11:59 PM and awake at 8:36 AM.


26

6hr 41min total sleep

Sleep score: 82
RR: 14.2

Body temp: -0.4°C

REM: 1hr 27min (22%)

Deep: 2hr 31min (38%)

HRV: 96

RHR: 42

7hr 9min total sleep

Sleep score: 75
RR: 14

REM: 1hr 51min

Deep: 1hr 43min

Avg HR: 45

I put my phone down at 11:47 PM and was awake at 7:19 AM.

Oura recorded me as being in bed at 11:42 PM and awake at 7:20 AM.


Sleeptracker had me in bed at 11:53 PM and awake at 7:17 AM.


27

6hr 49min total sleep

Sleep score: 74
RR: 13.8

Body temp: 0.3°C

REM: 1hr 19min (20%)

Deep: 1hr 43min (25%)

HRV: 89

RHR: 38

7hr 53 min total sleep

Sleep score: 76
RR: 13

REM: 1hr 53min

Deep: 49min

Avg HR: 42

I put my phone down at 11:32 PM and was awake at 8:05 AM.

Oura recorded me as being in bed at 11:46 PM and awake at 8:08 AM.


Sleeptracker had me in bed at 11:51 PM and awake at 8:04 AM.


28

5hr 45min total sleep

Sleep score: 69
RR: 15.2

Body temp: -0.3°C

REM: 49min (14%)

Deep: 1hr 39min (29%)

HRV: 63

RHR: 41

DID NOT RECORD ANY SLEEP

Sleeptracker inexplicably did not record me as being in bed at all this night, even though I was.

29

6hr 17min total sleep

Sleep score: 72
RR: 13.5

Body temp: -0.8°C

REM: 24min (6%)

Deep: 2hr 25min (39%)

HRV: 97

RHR: 37

6hr 56 min total sleep

Sleep score: 73
RR: 13

REM: 1hr 8min

Deep: 1hr 5min

Avg HR: 39

I went to bed sometime after 12 AM and woke up at 7:30 AM to an alarm.


Oura recorded me as being in bed at 12:17 AM and awake at 7:24 AM.
Sleeptracker recorded me as being in bed at 12:23 AM and awake at 7:29 AM.

30

7hr 45min total sleep

Sleep score: 84
RR: 14.8

Body temp: -0.3°C

REM: 1hr 24min (18%)

Deep: 2hr 28min (32%)

HRV: 72

RHR: 44

DID NOT RECORD!

This was the second day in the 30-day period that Sleeptracker did not record any sleep for me.


The Oura Ring was significantly more accurate than Sleeptracker in recording my time spent in bed. Moreover, it was significantly more accurate for me regarding the time I spent awake in the night. It is impossible to determine which device was more accurate regarding sleep stages, especially considering deep sleep is not actually defined by any consensus. On two nights, Sleeptracker failed to detect me as being in bed.

Here are my wife’s results:

Alex’s Wife’s Data

Day

Oura Ring

Sleeptracker

Notes

1

5hr 2min total sleep

Sleep score: 56
RR: 15.2

Body temp: -1.1°C

REM: 1hr 0min (20%)

Deep: 0hr 40min (13%)

HRV: 37

RHR: 57

5hr 52min total sleep

Sleep score: 62
RR: 15

Body temp: DNM

REM: 1hr 27min

Deep: 0hr 33min

Avg HR: 60

I went to bed at 12:15 AM; Oura recorded it as 12:23 AM and Sleeptracker as 12:44 AM.

I woke up at 6:40 AM; OUra had it as 6:39 AM and Sleeptracker had it as 6:44 AM.

2

6hr 19min total sleep

Sleep score: 62
RR: 14.9

Body temp: -0.4°C

REM: 59min (15%)

Deep: 52min (14%)

HRV: 57

RHR: 49

7hr 18min total sleep

Sleep score: 74
RR: 14

Body temp: DNM

REM: 1hr 55min

Deep: 1hr 12min

Avg HR: 51

I went to bed at 11:15 PM. Oura had it as 11:36 PM; Sleeptracker as 11:36 PM.


I got out of bed at 8:15 AM. Oura recorded it as 7:58 AM; Sleeptracker recorded it as 7:14 AM.

Oura recorded me awake for 2hr 3min.

Sleeptracker recorded me awake for 20min.


I woke up multiple times. The cat threw up. Oura was more accurate on this night.

3

5hr 19min total sleep

Sleep score: 50
RR: 15.2

Body temp: -0.8°C

REM: 0hr 55min (17%)

Deep: 0hr 30min (10%)

HRV: 34

RHR: 57

6hr 6min total sleep

Sleep score: 64
RR: 15

Body temp: DNM

REM: 1hr 39min

Deep: 0hr 32min

Avg HR: 65

I did not monitor my time asleep; I woke up at 7:40 AM (alarm at 7:30 AM; one snooze).

Oura recorded the wake-up time as 7:27 AM.


Sleeptracker recorded the wake-up time as 6:58 AM.

Oura recorded 2hr 53min awake time, which was not accurate;


Sleeptracker recorded 10min awake time, at the beginning and end of sleep, which is not accurate either, due to bathroom use throughout the night.

4

7hr 0min total sleep

Sleep score: 62
RR: 15.0

Body temp: -0.3°C

REM: 1hr 51min (27%)

Deep: 0hr 30min (7%)

HRV: 34

RHR: 56

7hr 3min total sleep

Sleep score: 68
RR: 14

Body temp: DNM

REM: 1hr 37min

Deep: 0hr 43min

Avg HR: 61

I fell asleep on the couch; data from sleep vs. Oura will not be congruent. I went to bed at 12:14 AM.

I woke up at 8:39 AM, after a 9-min“snooze”.; Oura recorded it as 8:43 AM and Sleeptracker as 8:37 AM.

Sleeptracker did not mark sleep until 12:58 AM, 44minafter I went to bed.

5

6hr 54min total sleep

Sleep score: 62
RR:15.2

Body temp: -0.2°C

REM: 1hr 20min (19%)

Deep: 0hr 20min (5%)

HRV: 54

RHR: 52

7hr 8min total sleep

Sleep score: 68
RR: 14

Body temp: DNM

REM: 1hr 22min

Deep: 0hr 30min

Avg HR: 55

I went to bed at 12:20 AM after falling asleep on the couch and woke up at 8:20 AM after hitting the snooze once.


Oura showed I was asleep at 11:07 PM and awake at 8:30 PM.

Sleeptracker showed I was in bed at 12:17 AM and awake at 7:55 AM (this is inaccurate; I was awoken by an alarm and fell back asleep between “snoozing” alarms.)

Oura was far more accurate for sleep duration on this day.

6

6hr 38min total sleep

Sleep score: 53
RR: 14.8

Body temp: +0.2°C

REM: 46min (12%)

Deep: 0hr 00min (0%)

HRV: 44

RHR: 53

6hr 30min total sleep

Sleep score: 64
RR: 14

Body temp: DNM

REM: 1hr 37min

Deep: 0hr 42min

Avg HR: 59

I was in bed at 12:25 AM after falling asleep on the couch prior to that. I did not note my waking time. It was sometime between 8:15 and 8:30 AM.


Oura recorded me as asleep at 11:10 PM and awake at 8:14 AM.


Sleeptracker recorded me as in bed at 1:02 AM (inaccurate) and out of bed at 8:02 AM.

7

4hr 4min total sleep

Sleep score: 43
RR: 14.8

Body temp: -0.1°C

REM: 41min (17%)

Deep: 0hr 1min (0%)

HRV: 37

RHR: 58

4hr 34min total sleep

Sleep score: 41
RR: 14

Body temp: DNM

REM: 57min

Deep: 0hr 48min

Avg HR: 62

There were huge variations in sleep stage measurements.

8

6hr 12min total sleep

Sleep score: 56
RR: 15.4

Body temp: -0.5°C

REM: 1hr 21min (22%)

Deep: 0hr 1min (0%)

HRV: 26

RHR: 62

6hr 45min total sleep

Sleep score: 69
RR: 15

Body temp: DNM

REM: 1hr 23min

Deep: 1hr 11min

Avg HR: 68

There were huge variations in sleep stage measurements.

9

6hr 26 min total sleep

Sleep score: 62
RR: 14.9

Body temp: -0.2°C

REM: 1hr 7min (17%)

Deep: 0hr 40min (11%)

HRV: 45

RHR: 55

6hr 41min total sleep

Sleep score: 70
RR: 14

Body temp: DNM

REM: 1hr 28min

Deep: 1hr 20min

Avg HR: 59

I was in bed at 11:15 PM and woke up at 8:09 AM after hitting “snooze” at 8:00 AM.


Our recorded me as being in bed at 11:17 PM and awake at 8:05 AM.


Sleeptracker recorded me as asleep at 12:00 AM and awake at 6:58 AM.


There was a large discrepancy in sleep stages.

10

6hr 4 min total sleep

Sleep score: 58
RR: 15.6

Body temp: +0.2°C

REM: 1hr 19min (22%)

Deep: 0hr 26min (7%)

HRV: 31

RHR: 58

6hr 59min total sleep

Sleep score: 70
RR: 15

Body temp: DNM

REM: 2hr 37min

Deep: 47min

Avg HR: 59

11

6hr 18 total sleep

Sleep score: 61
RR: 16.1

Body temp: -0.4°C

REM: 44min (12%)

Deep: 58min (06%)

HRV: 37

RHR: 56

7hr 16min total sleep

Sleep score: 65
RR: 15

Body temp: DNM

REM: 1hr 28min

Deep: 1hr 3min

Avg HR: 63

12

7hr 50min total sleep

Sleep score: 73
RR: 15.2

Body temp: +0.1°C

REM: 1hr 29min (19%)

Deep: 52min (11%)

HRV: 39

RHR: 53

8hr 9min total sleep

Sleep score: 73
RR: 15

Body temp: DNM

REM: 2hr 28min

Deep: 53min

Avg HR: 60

I went to bed at 10:00 PM and awoke at 8:15 AM.


Oura recorded me as asleep at 10:02 PM and waking up at 8:09 AM.


Sleeptracker recorded me as being in bed at 10:04 PM and waking at 7:08 AM.


Sleeptracker was not accurate in recording the time I was asleep.

13

5hr 41min total sleep

Sleep score: 56
RR: 15.2

Body temp: -0.3°C

REM: 1hr 5min (19%)

Deep: 26min (8%)

HRV: 40

RHR: 53

6hr 25min total sleep

Sleep score: 61
RR: 15

Body temp: DNM

REM: 1hr 22min

Deep: 53min

Avg HR: 60

I started trying to fall asleep at 10:55 PM and was awake at 6:39 AM.


Oura recorded me as trying to fall asleep at 10:57 PM and as awake at 6:34 AM.


Sleeptracker says I was trying to sleep at 11:09 PM and was awake at 6:28 AM.

14

6hr 47min total sleep

Sleep score: 56
RR: 15.4

Body temp: -0.2°C

REM: 1hr 24min (19%)

Deep: 41min (8%)

HRV: 43

RHR: 55

4hr 48min total sleep

Sleep score: 78
RR: 15

Body temp: DNM

REM: 2hr 14min

Deep: 57min

Avg HR: 59

I went to bed at 10:55 PM and woke up at 8:29 AM.

Oura recorded me as being in bed at 11:01 PM and awake at 8:29 AM.


Sleeptracker recorded me as being in bed at 11:22 PM and awake at 7:38 AM.

*Oura was significantly more accurate on this day.

15

6hr 4min total sleep

Sleep score: 55
RR: 14.9

Body temp: -0.0°C

REM: 1hr 3min (17%)

Deep: 13min (4%)

HRV: 37

RHR: 55

12hr 26min total sleep

Sleep score: 72
RR: 14

Body temp: DNM

REM: 2hr 53min

Deep: 31min

Avg HR: 59

I was in bed at 11:33 PM and woke up at 7:42 AM.

Oura recorded me as being in bed at 11:36 PM and awake at 7:42 AM.


Sleeptracker recorded me as being in bed at 3:39 PM (lol, what?), and awake at 7:42 AM.

Did Sleeptracker track the cat sleeping on her side? It hasn’t before.

16

5hr 38min total sleep

Sleep score: 57
RR:15.4

Body temp: -0.1°C

REM: 1hr 5min (19%)

Deep; 21min (6%)

HRV: 42

RHR: 53

8hr 50min total sleep

Sleep score: 67
RR: 14

Body temp: DNM

REM: 1hr 35min

Deep: 51min

Avg HR: 56

I went to bed at 11:24 PM and woke up at 7:42 AM.


Oura recorded me as being in bed at 11:33 PM and awake at 7:02 AM.


Sleeptracker recorded me as being in bed at 8:31 PM and awake at 7:56 AM.


*Sleeptracker is possibly tracking the cat lying on the bed.

Recordings from both devices were quite inaccurate today.

17

4hr 8min total sleep

Sleep score: 48
RR: 15.2

Body temp: -0.7°C

REM: 36min (15%)

Deep: 38min (15%)

HRV: 52

RHR: 50

5hr 18min total sleep

Sleep score: 54
RR: 15

Body temp: DNM

REM: 1hr 14min

Deep: 31min

Avg HR: 52

18

4hr 19min total sleep

Sleep score: 49
RR:15.8

Body temp: +0.5°C

REM: 26min (10%)

Deep: 39min (15%)

HRV: 45

RHR: 53

4hr 57min total sleep

Sleep score: 73
RR: 15

Body temp: DNM

REM: 1hr 31min

Deep: 59min

Avg HR: 58

I was in bed at 10:41 PM and woke up at 6:54 AM.


Oura recorded me as being in bed at 11:07 PM and awake at 4:18 AM.


Sleeptracker recorded me as being in bed at 10:48 PM and awake at 6:47 AM.

*Sleeptracker was far more accurate on this day.

19

6hr 21 min total sleep

Sleep score: 62
RR: 15.2

Body temp: -0.7°C

REM: 1hr 20min (21%)

Deep: 21min (6%)

HRV: 37

RHR: 55

13hr 22min total sleep

Sleep score: 81
RR: 14

Body temp: DNM

REM: 2hr 14min

Deep: 44min

Avg HR: 56

I was in bed at 11:32 PM and woke up at 6:54 AM.


Oura recorded me as being in bed at 11:25 AM and awake at 6:58 AM.


Sleeptracker recorded me as being in bed at 3:35 PM and awake at 6:39 AM.


Sleeptracker was very inaccurate. I was not home, and there was no person lying on the bed. Maybe the cat was on the bed for a bit?

20

6hr 13 min total sleep

Sleep score: 50
RR: 15.2

Body temp: -0.0°C

REM: 1hr 18min (21%)

Deep: 00min (0%)

HRV: 39

RHR: 56

1hr 55min total sleep

Sleep score: 26
RR: 16

Body temp: DNM

REM: 27min

Deep: 31min

Avg HR: 61

I was in bed at 10:55 PM and woke up at 7:45 AM.


Oura recorded me as being in bed at 11:23 PM and awake at 7:46 AM.


Sleeptracker recorded me as being in bed at 11:29 PM and awake at 1:34 AM.


Sleeptracker was very inaccurate..

21

8hr 17min total sleep

Sleep score: 85
RR: 15.5

Body temp: +0.7°C

REM: 2hr 38min (32%)

Deep: 1hr 1min (12%)

HRV: 14

RHR: 64

4hr 3min total sleep

Sleep score: 44
RR: 16

Body temp: DNM

REM: 44min

Deep: 27min

Avg HR: 71

22

6hr 43min total sleep

Sleep score: 57
RR: 15.5

Body temp: -0.6°C

REM: 1hr 32min (23%)

Deep: 12min (3%)

HRV: 49

RHR: 52

13hr 56min total sleep

Sleep score: 83
RR: 15

Body temp: DNM

REM: 3hr 32min

Deep: 38min

Avg HR: 55

23

7hr 30min total sleep

Sleep score: 67
RR: 15.0

Body temp: 0.1°C

REM: 1hr 30min (20%)

Deep: 27min (6%)

HRV: 40

RHR: 54

14hr 42min total sleep

Sleep score: 81
RR: 14

Body temp: DNM

REM: 2hr 22min

Deep: 16min

Avg HR: 57


I went to bed at around midnight and was awake at about 8:30 AM.

Oura recorded me as being in bed at 11:45 PM and awake at 8:35 AM.


Sleeptracker recorded me as being in bed at 3:37 PM and awake 7:34 AM.

24

4hr 29min total sleep

Sleep score: 51
RR: 15.0

Body temp: -0.3°C

REM: 23min (9%)

Deep: 40min (15%)

HRV: 52

RHR: 50

7hr 13min total sleep

Sleep score: 67
RR: 14

Body temp: DNM

REM: 1hr 19min

Deep: 42min

Avg HR: 54

Oura recorded me as waking up at 5:42 AM. The cat disturbed my sleep; I got up for about 30min, then went back to bed for 2hr until shortly after 8 AM.


Sleeptracker recorded me as waking up at 8:12 AM with an “awake” gap; Oura tracked the second stint of sleep as a “nap.”

Sleeptracker was more accurate on this day.

25

5hr 48min total sleep

Sleep score: 61
RR: 15.5

Body temp: -0.9°C

REM: 54min (15%)

Deep: 1hr 4min (19%)

HRV: 35

RHR: 57

5hr 54min total sleep

Sleep score: 54
RR: 15

Body temp: DNM

REM: 1hr 4min

Deep: 60min

Avg HR: 58

I was in bed at 11:47 PM and woke up at 7:18 AM.


Oura recorded me being in bed at 11:57 PM and awake at 7:16 AM.


Sleeptracker recorded me as being in bed at 12:02 AM and awake at 7:17 AM.

26

6hr 43min total sleep

Sleep score: 64
RR: 15.4

Body temp: -0.0°C

REM: 1hr 25min (21%)

Deep: 30min (8%)

HRV: 34

RHR: 56

10hr 56min total sleep

Sleep score: 54
RR: 15

Body temp: DNM

REM: 2hr 45min

Deep: 26min

Avg HR: 61



I was in bed at around11:30 PM.

Oura recorded me as being in bed at 11:52 PM.


Sleeptracker recorded me as being in bed at 8:26 PM.

27

5hr 10min total sleep

Sleep score: 48
RR: 16.1

Body temp: +0.4°C

REM: 32min (10%)

Deep: 16min (5%)

HRV: 34

RHR: 58

9hr 33min total sleep

Sleep score: 79
RR: 16

Body temp: DNM

REM: 2hr 9min

Deep: 45min

Avg HR: 52

I was in bed around midnight.


Sleeptracker recorded me as asleep at 8:31 PM!

Serious error in Sleeptracker’s results.

28

4hr 45min total sleep

Sleep score: 52
RR: 14.9

Body temp: +0.3°C

REM: 50min (18%)

Deep: 46min (16%)

HRV: 43

RHR: 55

4hr 15min total sleep

Sleep score: 64
RR: 14

Body temp: DNM

REM: 2hr 10min

Deep: 52min

Avg HR: 57

I went to bed after midnight and I woke up with my alarm ringing at 7:30 AM..

Oura recorded me as going to bed at 12:28 AM and waking up at 6:21 AM.


Sleeptracker recorded me as going to bed at 10:29 PM and waking up at 7:18 AM.


Sleeptracker was more accurate for measuring my time of awakening; however, I went to bed after midnight.
Neither was particularly accurate for even sleep time today.

29

3hr 41min total sleep

Sleep score: 47
RR: 16.5

Body temp: -0.0°C

REM: 27min (12%)

Deep: 22min (10%)

HRV: 14

RHR: 77

13hr 11min total sleep

Sleep score: 78
RR: 16

Body temp: DNM

REM: 3hr 29min

Deep: 29min

Avg HR: 78

I went to bed at 11:10 PM and woke up at 7:09 AM.

Oura recorded me being in bed at 11:15 PM and awake at 3:11 AM.


Sleeptracker recorded me as being in bed at 8:31 PM and awake at 12:22 PM.

Both devices were insanely inaccurate on this day.

30

5hr 10min total sleep

Sleep score: 48
RR: 16.4

Body temp: +0.6°C

REM: 32min (11%)

Deep: 6min (2%)

HRV: 21

RHR: 65

6hr 51min total sleep

Sleep score: 72
RR: 15

Body temp: DNM

REM: 1hr 43min

Deep: 1hr 1min

Avg HR: 73

I went to bed at 11:50 PM and woke up at 6:48 AM.

Oura recorded me as being in bed at 11:49 PM and awake at 6:50 AM.


Sleeptracker recorded me as being in bed at 11:46 PM and awake at 6:47 AM.

Both devices were very accurate today.


Both devices had inaccuracies regarding time we were in bed and time awake in the night; however, Sleeptracker app had the largest discrepancies. It’s possible that Sleeptracker was recording sleep when our cat walked across the bed, but only on my wife’s half, and interestingly, the cat prefers sleeping on my side of the bed. Another potential variable is that sometimes my wife will momentarily lie down on the bed to plug her phone into the charger, and perhaps Sleeptracker was recording that as “lying down in bed,” and when she got up moments later, the entire time was tracked as “sleep.” Either way, the recorded results were completely inaccurate.

Takeaways From My Comparison of Sleeptracker vs. Oura Ring

Again, the Oura Ring wins this battle hands down. I do not recommend the Sleeptracker for anyone since far better options exist on the market.