# COLMI Fit vs JRing

The clearest difference is rating: COLMI Fit at 3.7 against JRing's 2.3. COLMI Fit also leads on review sentiment (50% vs 19%). JRing's advantage is update cadence (monthly vs every 3 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

COLMI Fit holds the better App Store score, 3.7 against 2.3. Both are backed by a comparable volume of ratings — 49 and 98 respectively. Written reviews point the same way: 50% of COLMI Fit's written reviews are positive against 19% of JRing's.

COLMI Fit ships an update every 3 months, JRing monthly. The most recent releases landed on October 20, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | COLMI Fit | JRing |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (49 ratings)](https://appshunter.io/ios/app/colmi-fit/id1450060828/reviews)** | [2.3 (98 ratings)](https://appshunter.io/ios/app/jring/id6502148807/reviews) |
| Number of ratings | 49 | **98** |
| Positive reviews | **50.0% of reviews** | 19.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Free | Free |
| Size | 386 MB | 27 MB |
| Requires iOS | 13 | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Fan Lukun](https://appshunter.io/developer/1450060827) | [小丽 张](https://appshunter.io/developer/1734826164) |

## What reviewers say

### COLMI Fit

[App page](https://appshunter.io/ios/app/colmi-fit/id1450060828)

This app syncs with compatible smartwatches to display health metrics like steps, calories, heart rate, sleep, blood pressure, and blood oxygen. It also provides notifications for calls and messages, and tracks various sports activities.

**Highlights:** Health metric dashboard, Real-time activity tracking, Sleep analysis, Blood pressure and oxygen monitoring, Call and message notifications, Calorie and step counting

**In-app purchases:** none


### JRing

[App page](https://appshunter.io/ios/app/jring/id6502148807)

Track your daily activity, exercise, and sleep to achieve a healthier lifestyle. Monitor steps, calories burned, distance, and sleep patterns with detailed analysis and goal tracking. Offers multiple exercise modes and GPS tracking for your workouts.

**Highlights:** Daily goal tracking, Health data display (steps, sleep, exercise), Sports data analysis with GPS, Multiple exercise modes, Sleep pattern tracking, Calorie, pace, speed, distance tracking

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- ⌚ Display screen feature is convenient and useful
- 🔋 Long battery life (up to 7 days on some models)
- 💪 Waterproof and durable hardware design
- 🏥 Syncs well with Apple Health app
- 📊 Tracks multiple health metrics (heart rate, sleep, steps, blood pressure)

**What reviewers complain about**

- 🐛 Frequent app crashes and freezing
- 📡 Bluetooth connection constantly drops and disconnects
- ❌ App fails to connect to ring despite Bluetooth pairing
- 🔄 Data sync issues and inconsistent data transfer
- ⏰ Inaccurate step counting and activity tracking

**Reported bugs**

- App crashes on startup (especially after iOS updates)
- Ring disconnects from app and won't reconnect without recharging
- Bluetooth pairing works but app connection fails
- Step counter shows drastically inaccurate numbers
- Sleep data not recording or showing incorrect times

**Requested features**

- Automatic periodic blood oxygen measurements (not just manual)
- Dark mode theme option
- Automatic low battery notifications
- Customizable display brightness settings in app (not just on ring)
- Lock screen widget for quick health data access


## Frequently asked questions

### Is COLMI Fit free?

COLMI Fit is free to download, with no in-app purchases.

### Is JRing free?

JRing is free to download, with no in-app purchases.

### Which has better reviews, COLMI Fit or JRing?

COLMI Fit is rated higher. COLMI Fit averages 3.7 out of 5 from 49 ratings, while JRing averages 2.3 from 98 ratings.

### Do COLMI Fit or JRing have ads?

Neither COLMI Fit nor JRing shows ads.

### Which is updated more often, COLMI Fit or JRing?

COLMI Fit ships an update every 3 months, and JRing monthly. Most recently, COLMI Fit was updated on October 20, 2026 and JRing on October 23, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*