Colmi i28 Ultra smartwatch in gold combines a 1.43-inch AMOLED touchscreen with a lightweight, ergonomic body to provide everyday functionality and a refined look. The watch supports Bluetooth calling via its built-in speaker and microphone, offers multiple health and activity tracking functions, and delivers up to 5–7 days of normal use on its 260 mAh Li‑Po battery. The device is IP68 rated for water resistance and comes with a magnetic charging cable and user manual.
Advantages
The Colmi i28 Ultra features a high-resolution 466x466 AMOLED display for vivid colors and clear images, customizable watch faces, and an ergonomic silicone strap for comfortable daily wear. It measures heart rate, blood pressure and blood oxygen, monitors sleep and can be used as a menstrual calendar. The watch supports numerous sports modes, step and calorie tracking, remote camera and music control, and shows incoming messages and notifications. Bluetooth 5.3 connectivity ensures stable pairing within approximately 10 m.
Key specifications
- Manufacturer: Colmi
- Model: i28 Ultra
- Color: Gold
- Chipset: JL7013A6S
- Memory: RAM 640 KB, ROM 256 Mb
- Bluetooth: version 5.3, range approx. 10 m
- Display: 1.43-inch AMOLED, 466x466 pixels
- Battery: Li‑Po 260 mAh, charging time approx. 2 h (magnetic charging)
- Operating time: normal use about 5–7 days; standby about 30 days
- Speaker and microphone: yes (supports Bluetooth calls)
- Dimensions and weight: 43.5 x 43.5 x 11 mm; 51 g
- Materials: zinc alloy + ABS + PC; silicone strap (20 mm width)
- Water resistance: IP68
- Compatibility: Android 4.4+; iOS 8.0+; HarmonyOS
- App: COLMI FIT
- Watch and app languages: multiple language options including English and Russian
- Included: smartwatch, magnetic charging cable, user manual
How to use
Charge the watch using the supplied magnetic cable until fully charged (about 2 hours). Install the COLMI FIT app on a compatible smartphone (Android 4.4 or later, iOS 8.0 or later, or HarmonyOS) and pair the watch via Bluetooth 5.3. Customize a watch face, enable desired health and activity tracking modes, and grant necessary permissions in the app for notifications, calls and health data. Use the touchscreen to navigate menus, start sports modes, view measurements and control music or camera on the connected phone.
Recommendations
For reliable measurements and longer battery life, keep the watch firmware and COLMI FIT app updated, wear the device snugly on the wrist during activity and sleep, and avoid exposing it to strong chemicals. Although IP68 protects against splashes and brief immersion, avoid prolonged underwater use. Refer to the user manual for detailed safety and maintenance instructions.
