BKTFit is a free smartwatch and smart band companion app developed by Shenzhen United Power Technology Co., Ltd. The BKTFit 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, calorie tracking, and workout recording — all synced from your wrist-worn device.
On Google Play, BKTFit has accumulated 500K+ downloads with a 3.7-star rating from over 1.53K reviews. On the App Store, it holds a 3.8-star rating from 11 ratings, requires iOS 12.0+, and has a file size of 144.1 MB. The app supports 38 languages and is available worldwide at no cost with no in-app purchases.
Device Pairing & Management
BKTFit makes it easy to pair and manage your smart devices:
- 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 app supports both touchscreen and non-touchscreen devices, with side-key navigation for non-touch models.
Health & Fitness Tracking
BKTFit delivers continuous health monitoring from compatible devices:
- Heart rate monitoring — continuous heart rate tracking with daily trend visualization
- Blood oxygen (SpO2) — monitor oxygen saturation levels throughout the day
- Blood pressure monitoring — reference blood pressure readings for trend tracking (non-medical)

