# SMA vs SRing

The clearest difference is rating: SMA at 2.0 against SRing's 1.7. SMA also leads on iOS requirement (8.0 vs 12.0). SRing's advantage is ratings volume (3 vs 1). On price, update cadence, 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.

SMA holds the better App Store score, 2.0 against 1.7. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

SMA ships an update every 2 months, SRing monthly. The most recent releases landed on October 2, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | SMA | SRing |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/sma/id1016364790/reviews)** | [1.7 (3 ratings)](https://appshunter.io/ios/app/sring/id6472034068/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | 27.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free | Free |
| Size | 60 MB | 20 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Shenzhen Smart Care Technology Co., Ltd](https://appshunter.io/developer/1016364789) | [智勇 陈](https://appshunter.io/developer/1515662022) |

## What reviewers say

### SMA

[App page](https://appshunter.io/ios/app/sma/id1016364790)

This smart watch offers comprehensive activity and sleep tracking, along with essential notifications and remote functions. It boasts exceptional battery life and durable, premium materials for a stylish and practical wearable experience.

**Highlights:** Activity tracking, Sleep monitor, Call & SMS notifications, 5ATM water resistance, 6+ month battery life, Sapphire glass, Integrates with Apple Health

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

**In-app purchases:** none


### SRing

[App page](https://appshunter.io/ios/app/sring/id6472034068)

This application connects to smart rings to display and analyze your daily exercise and sleep data. It helps you understand your health status by providing visual insights into your activity levels and sleep patterns.

**Highlights:** Exercise data display (steps, calories, duration), Sleep data display (deep sleep, light sleep, sleep time), Visual data analysis, Health status understanding, Exercise and sleep plan management

**In-app purchases:** none


## Frequently asked questions

### Is SMA free?

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

### Is SRing free?

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

### Which has better reviews, SMA or SRing?

SMA is rated higher. SMA averages 2.0 out of 5 from 1 ratings, while SRing averages 1.7 from 3 ratings.

### Do SMA or SRing have ads?

Neither SMA nor SRing shows ads.

### Which is updated more often, SMA or SRing?

SMA ships an update every 2 months, and SRing monthly. Most recently, SMA was updated on October 2, 2026 and SRing on October 9, 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.*