| key specs |
| Compatible OS | iOS 11 or above, Android 9.0 or above | Android, iOS |
| Strap Material | Silicone | - |
| Dial Shape | Rectangle | Curved |
| Display Size | - | 33mm |
| Ideal For | - | Unisex |
| general |
| Brand | Noise | Lenovo |
| Model | ColorFit Ultra 2 Buzz | Carme (HW25P) |
| Release date | August 17, 2022 | September 14, 2019 |
| Dial Shape | Rectangle | Curved |
| Strap Material | Silicone | - |
| Size | Regular | Regular |
| Touchscreen | Yes | - |
| Water Resistant | IP68 | - |
| Model Number | - | HW25P |
| Model Name | - | Carme |
| Interchangeable Strap | - | Yes |
| Ideal For | - | Unisex |
| dimensions |
| Width | 45.6 | - |
| Height | 37.5 | - |
| Thickness | 37.5 | - |
| Weight (g) | 41.40 | - |
| product details |
| Sensor | SpO2 Sensor, Heart Rate Sensor | Pedometer |
| Notification | Yes | Yes |
| Notification Type | Call, Message, Alarms, Reminders | - |
| Battery Life | 7 days | 7 days |
| Charge Time | 2 hours | - |
| Stand By Time | 35 days | 25 days |
| connectivity features |
| Call Function | Yes | - |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.3 | 4.2 |
| Call Features | Reject Calls, Take Calls, Call Logs, Dial Pad | - |
| platform and storage features |
| Compatible Operating System | iOS 11 or above, Android 9.0 or above | Android, iOS |
| fitness and watch functions |
| Step Count | Yes | Yes |
| Calorie Count | Yes | - |
| Heart Rate Monitor | Yes | Yes |
| Alarm Clock | Yes | Yes |
| Date & Time Display | Yes | Yes |
| Other Fitness Features | 100 Sports Modes, Auto Sports Detection | 8 sports mode |
| Other Watch Functions | - | weather forecast, search for the phone, alarm reminder, stopwatch, smart notifications |
| audio and video features |
| Speaker | Yes | - |
| Microphone | Yes | - |
| camera and display features |
| Display Size | - | 33mm |