CIRCUL RING vs SLEEPON 3
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CIRCUL RING
This app tracks your sleep quality, daily activity, and key health indicators. It provides personalized insights and trends to help you understand and adjust your physical state. Professional sports data recording is also included.
- Sleep monitoring (heart rate, stages, temperature)
- Daily activity tracking (heart rate, steps, calories)
- Health indicator trend analysis
- Professional sports data recording
- Personalized health tips
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1. Monitor various body indicators during sleep, CIRCUL RING will monitor heart rate, sleep stage, night body temperature and other indicators in real time when you sleep, you can easily know the sleep status of each night, and provide personalized tips to help you adjust your physical state; 2. Monitor daily activity data around the clock, record your daily heart rate, steps, calories, exercise time, etc., and provide personalized prompts; 3. A quick overview of the changes in health indicators, rising or falling over time, and the trend of daily, weekly, and monthly changes at a glance; 4. Professional sports details record, including heart rate, step count and other detailed data, data charts, etc. *Disclaimer: This app is not a medical app, and all health-related data, results, recommendations, etc. are for reference only, not for medical purposes. The ring product connected to the application is not a medical device and cannot provide any medical services, if you feel unwell, please consult a medical institution in time.
SLEEPON 3
This system provides a home sleep testing solution using a wearable device and a mobile app. It analyzes sleep data to identify potential issues and build long-term sleep profiles for proactive risk assessment. It's designed for various age groups and individuals with specific health concerns.
- Home sleep testing system
- Wearable sleep ring
- Companion mobile application
- sleepFit™ algorithm
- Vital biological data capture
- Sleep health issue identification
- Long-term sleep profile establishment
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SLEEPON 3 offers a comprehensive home sleep testing system, featuring the go2sleep device paired with intuitive mobile applications. Powered by the advanced sleepFit™ algorithm, SLEEPON 3 accurately captures vital biological data via its sleep ring and companion app. This innovative solution not only identifies potential sleep health issues but also facilitates the establishment of long-term sleep profiles, enabling proactive risk assessment. Designed for individuals of all ages, SLEEPON 3 is particularly beneficial for middle-aged and elderly individuals, professionals, patients with chronic cardiovascular conditions, those struggling with obesity. Experience peace of mind knowing that SLEEPON 3 serves as a dedicated guardian of your family's sleep health. DISCLAIMER: This product is not a medical device. All data and suggestions provided by "SLEEPON 3" are intended to help you understand your sleep condition and are for reference only. They should not be taken as clinical diagnoses. Please consult a professional doctor before making any medical decisions. Jurisdiction Statement: This application is intended for use in China. We control and operate in the aforementioned countries; unless otherwise stated, the materials displayed on this app are solely for the purpose of promoting products and services in these countries. We make no representations regarding the applicability or suitability of any materials on this app in any other locations. If you choose to access this app from other locations, you are responsible for complying with the applicable local laws.
Screenshots
Verdict
The clearest difference is review sentiment: SLEEPON 3 at 35% against CIRCUL RING's 13%. CIRCUL RING's advantage is rating (2.3 vs 2.1). On price, ratings volume, update cadence and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
CIRCUL RING holds the better App Store score, 2.3 against 2.1. Both are backed by a comparable volume of ratings — 34 and 30 respectively. Written reviews complicate that: 13% of CIRCUL RING's written reviews are positive against 35% of SLEEPON 3's, so the app with the better star average is not the one people write more warmly about.
Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 8, 2026 and October 9, 2026 respectively.
| Parameter | CIRCUL RING | SLEEPON 3 |
|---|---|---|
| Price | Free | Free |
| Rating | 2.3 (34 ratings) — better | 2.1 (30 ratings) |
| Positive reviews | 12.9% of reviews | 35.2% of reviews — better |
| Number of ratings | 34 — better | 30 |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 106 MB | 67 MB |
| Age rating | 17+ | 17+ |
| Developer | BodiMetrics, LLC | Shenzhen Sleepon Technology Co., Ltd. |
Customer experience
CIRCUL RING
SLEEPON 3
Bugs and requests
CIRCUL RING
Not enough reviews yet to summarise bugs or requests.
SLEEPON 3
Reported bugs
63 issues- Network error nonstop
- App constant network error
- App won't sync with Apple Health
- App won't open unless signed into website
- Device stopped working
Show 58 moreShow fewer
- Bluetooth connection dropping
- Cannot get any results trying to log in
- Cannot add a new account
- Network error
- Connectivity issues to the cloud
- Cannot log on to account
- Data won't synchronise to the cloud
- Lost sleep data
- Device has not worked properly
- App never updates
- Sign up not secure
- New account sign up not secure
- Password generation not working
- Forces manual entry of security code
- No HealthKit Integration
- App doesn't sync with Apple Health
- Device syncs with SleepOn 3 but SleepOn 3 doesn't sync with Apple Health
- Data just never syncs
- App seems wildly inaccurate
- Device wildly different from other trackers
- Unausgereift App
- No support for Fingerkuppenhalterung
- Unzuverlässige und teilweise keine Aufzeichnung
- Kein Hinweis, dass nicht aufgezeichnet wurde
- Unübersichtliche Konfiguration
- Kein Hinweis, dass ein Update verfügbar ist
- Actual time is wrong
- Shows 'real time' heart rate and oxygen when not wearing the ring
- Won't connect most nights
- Constantly drained phone battery
- Device does not shut down when not in use
- New version is not as good as the original
- Have to keep syncing the ring to the phone
- Network connection error after iOS update
- Blood glucose testing does not save results
- Data only displayed every second night
- Device does not work
- Reads pulse O2 of 70-80% compared to typical 97%
- Malfunctions
- Screen shot upload does not work
- Syncing issues
- App drains battery
- No response from customer service
- Blood glucose measurement is worthless
- No option to select mmol/L for Blood glucose
- Time stamp for Blood glucose is way-way off
- Did not record waking up and walking around during the night
- App is overwhelming
- Sleep apnea monitoring is gone
- Ring holder does not accurately sense oxygen
- Only the fingertip holder does
- Maybe one in four times the data will sync
- No response from support
- Will not download data
- Bug step backwards
- Firmware update made the ring incompatible
- App requires website login
- No way to prevent cloud upload
Requested features
13 requests- Add Apple Health integration
- Add vibration alarm
- Add sleep apnea monitoring (AHI)
- Add adjustable cards feature
- Allow editing of sleep time
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- Add option to select mmol/L for Blood glucose
- Improve blood glucose measurement accuracy
- Fix blood glucose timestamp issues
- Provide professional displays/charts
- Enable screenshot upload
- Add fingertip version setting
- Add support for Fingerkuppenhalterung
- Add dark mode option
In-app purchases
CIRCUL RING
No in-app purchases
SLEEPON 3
No in-app purchases
