Viwa Fit is a free smartwatch and smart band companion app developed by Shenzhen United Power Technology Co., Ltd. The Viwa Fit app connects to compatible smart devices via Bluetooth and provides comprehensive health and fitness tracking — including step counting, heart rate monitoring, sleep analysis, blood oxygen (SpO2), blood pressure monitoring, GPS workout recording, and calorie tracking — all synced from your wrist-worn device.
On Google Play, Viwa Fit has accumulated 100K+ downloads with a 3.4-star rating from over 1.26K reviews. On the App Store, it holds a 2.2-star rating from 30 ratings, requires iOS 12.0+, and has a file size of 182.5 MB. The app supports 38 languages and is available worldwide at no cost with no in-app purchases.
Device Pairing & Management
Setting up your Viwa Fit smartwatch with the app is straightforward:
- Bluetooth pairing — scan and connect to compatible smartwatches and smart bands with a simple tap
- Device management — view battery level, firmware info, and device settings from the app dashboard
- Notification sync — push incoming call info, SMS, and app notifications to your wearable device
- Recent call sync — sync recent call history to your smartwatch for quick reference
- Watch face customization — personalize your device with custom wallpaper and watch face styles
The Viwa Fit app works with Viwa Fit branded smartwatches including the T20 Ultra 2, offering a 1.4" display, 5 ATM water resistance, and up to 2 days of battery life.
Health & Fitness Tracking
Viwa Fit delivers continuous health monitoring from compatible devices:
- Heart rate monitoring — continuous heart rate tracking with ±2–5 bpm accuracy and daily trend visualization
- Blood oxygen (SpO2) — monitor oxygen saturation levels throughout the day

