YFit Pro

YFit Pro is a free companion app for budget smartwatches like SN90 and SN88, developed by kewowatch (Shenzhen Kewo Technology Co., Ltd.). It connects to your smartwatch via Bluetooth to track steps, calories, distance, heart rate, and sleep (deep/shallow). It also supports Bluetooth calling, SMS/app notifications, 15 sports modes, watch face customization, remote camera/music control, and device finder. Available on Google Play (100K+ downloads) and App Store with 34 language support.

To connect YFit Pro: (1) Download the app from Google Play (com.watch.yfitpro) or App Store (id1572945511); (2) Open the app and enable Bluetooth on your phone; (3) Power on your smartwatch; (4) In YFit Pro, go to the device section and search for nearby devices; (5) Select your watch (e.g., SN90 or SN88) from the scan list and confirm pairing; (6) Grant notification access and location permissions when prompted. Keep both devices close during initial pairing for the best connection.

Common YFit Pro connection fixes: (1) Ensure Bluetooth is enabled and restart the app; (2) Keep within 1–2 meters during initial pairing; (3) Clear app cache: Settings > Apps > YFit Pro > Storage > Clear Cache; (4) Update to the latest app version from the store; (5) Remove the watch from other phones' Bluetooth settings first — it may be paired elsewhere; (6) Restart both phone and watch, then re-pair; (7) If problems persist after an app update, try uninstalling and reinstalling the app. Some users report that watch face changes fail or reconnection issues occur after updates.

YFit Pro is designed for budget smartwatches from the Kewo Technology ecosystem. Compatible models include SN90, SN88, and similar watches that specify 'YFit Pro' as their companion app. If your watch's packaging or manual mentions downloading 'YFit Pro', your device is compatible. The app is model-specific, so always verify compatibility before purchasing. Similar apps from the same developer ecosystem include Coolwear.

YFit Pro supports making and receiving phone calls via Bluetooth on compatible smartwatches. After pairing your watch with the app, enable the Bluetooth call feature in settings. When a call comes in, you'll see the caller information on your watch and can answer or decline directly. You can also initiate calls from the watch's dial pad. Call quality depends on Bluetooth signal strength — stay within range for clear audio. Note: your phone must remain connected via Bluetooth for calls to work.

YFit Pro monitors sleep through your smartwatch's motion sensors. Wear your watch to bed with Bluetooth connected to your phone. The app records deep sleep and shallow sleep phases throughout the night. In the morning, open YFit Pro to view your sleep summary with duration breakdowns. Historical data shows sleep trends across days and weeks to help identify patterns and improve rest habits.

Yes, YFit Pro is completely free to download and use on both Android and iOS. There are no subscription fees, premium tiers, or in-app purchases. All features — health tracking, sleep monitoring, Bluetooth calling, notifications, watch face market, sports modes, and device management — are available at no cost.

YFit Pro supports 15 sports modes including running, cycling, walking, swimming, hiking, climbing, yoga, basketball, football, badminton, tennis, and more. Each mode tracks relevant metrics such as duration, calories burned, heart rate, and distance (for applicable activities). After your workout, the app provides a summary with detailed performance data. GPS-based movement trajectory mapping is available for outdoor activities when location permission is granted.

To change watch faces: (1) Open YFit Pro with your watch connected; (2) Navigate to the watch face / dial market section; (3) Browse available designs; (4) Select your preferred watch face and tap download/apply; (5) Wait for the transfer to complete — this may take a moment via Bluetooth. If a watch face shows 'no data' or fails to download, check your internet connection, try a different design, or clear the app cache and try again.

To enable notifications: (1) Open YFit Pro with your watch connected; (2) Go to device settings / notification settings; (3) Enable 'Call Reminder' for incoming call alerts; (4) Enable 'SMS Reminder' for text message forwarding; (5) Enable individual app notifications (WhatsApp, Facebook, etc.); (6) Grant YFit Pro notification access in your phone's system settings (Android: Settings > Notifications > App Notifications). Your watch will display notifications in real-time once configured.