# MATRIX PowerWatch vs ARMITRON

The clearest difference is review sentiment: ARMITRON at 67% against MATRIX PowerWatch's 10%. ARMITRON also leads on rating (4.7 vs 2.0) and monetization model (free vs paid). MATRIX PowerWatch's advantage is update cadence (every 3 weeks vs every 3 months) and iOS requirement (9.3 vs 13.0). 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.

ARMITRON holds the better App Store score, 4.7 against 2.0. Both are backed by a comparable volume of ratings — 119 and 321 respectively. Written reviews point the same way: 10% of MATRIX PowerWatch's written reviews are positive against 67% of ARMITRON's.

MATRIX PowerWatch ships an update every 3 weeks, ARMITRON every 3 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | MATRIX PowerWatch | ARMITRON |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (119 ratings)](https://appshunter.io/ios/app/matrix-powerwatch/id1296727127/reviews) | **[4.7 (321 ratings)](https://appshunter.io/ios/app/armitron/id6758620418/reviews)** |
| Number of ratings | 119 | **321** |
| Positive reviews | 9.9% of reviews | **66.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | Paid | **Free** |
| Size | 84 MB | 182 MB |
| Requires iOS | **9.3** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Matrix Industries, Inc.](https://appshunter.io/developer/1296727126) | [AX Technologies](https://appshunter.io/developer/1229724934) |

## What reviewers say

### MATRIX PowerWatch

[App page](https://appshunter.io/ios/app/matrix-powerwatch/id1296727127)

This smartwatch is unique as it never needs charging, instead being powered by your body heat. It tracks calories burned, activity levels, and sleep patterns using advanced thermoelectric technology. It also features a power meter to show your personal energy generation.

**Highlights:** Body heat powered, No charging required, Calorie tracking, Activity monitoring, Sleep tracking, Power meter

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🚀 Never needs charging
- 👍 Robust hardware
- 🔒 Secure data transfer
- 💡 Innovative thermoelectric charging

**What reviewers complain about**

- 🐛 Frequent sync issues
- 🔋 Battery drain issues
- 👎 Limited watch faces and customization
- 🤖 Buggy and unreliable app
- 🕰️ Inaccurate time and activity tracking

**Reported bugs**

- App crashes frequently
- Bluetooth connectivity problems
- Firmware updates causing issues
- Sync failures leading to data loss

**Requested features**

- Add more watch face options
- Integrate with Apple Health/Google Fit
- Improve notification support
- Add heart rate monitoring
- Enhance sleep tracking


### ARMITRON

[App page](https://appshunter.io/ios/app/armitron/id6758620418)

This app enhances your smartwatch experience by tracking fitness metrics, managing notifications, and offering personalized health reminders. Customize your watch with various faces and access additional features like camera control and music playback.

**Highlights:** Steps tracking, Heart rate monitoring, Calories burned tracking, Sleep health monitoring, Customizable watch faces, Notifications management, Activity goal setting

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

**In-app purchases:** none


## Frequently asked questions

### Is MATRIX PowerWatch free?

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

### Is ARMITRON free?

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

### Which has better reviews, MATRIX PowerWatch or ARMITRON?

ARMITRON is rated higher. MATRIX PowerWatch averages 2.0 out of 5 from 119 ratings, while ARMITRON averages 4.7 from 321 ratings.

### Do MATRIX PowerWatch or ARMITRON have ads?

Neither MATRIX PowerWatch nor ARMITRON shows ads.

### Which is updated more often, MATRIX PowerWatch or ARMITRON?

MATRIX PowerWatch ships an update every 3 weeks, and ARMITRON every 3 months. Most recently, MATRIX PowerWatch was updated on October 24, 2026 and ARMITRON on October 25, 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.*