| key specs |
| Strap Colour | Frozen Silver, Thunder Black, and Volcanic Orange | - |
| Display Size | 36mm | - |
| Compatible OS | Android, iOS | iOS 11 or above, Android 9.0 or above |
| Dial Shape | Round | Rectangle |
| Display Type | Super AMOLED | - |
| Strap Material | - | Silicone |
| general |
| Brand | Boult Audio | Noise |
| Model | Crown R PRO | ColorFit Ultra 2 Buzz |
| Release date | June 19, 2023 | August 17, 2022 |
| Model Name | Crown R Pro | - |
| Dial Colour | Black | - |
| Dial Shape | Round | Rectangle |
| Strap Colour | Frozen Silver, Thunder Black, and Volcanic Orange | - |
| Water Resistant | IP67 | IP68 |
| Strap Material | - | Silicone |
| Size | - | Regular |
| Touchscreen | - | Yes |
| dimensions |
| Width | 47 | 45.6 |
| Height | 46 | 37.5 |
| Thickness | 13 | 37.5 |
| Weight (g) | 56.50 | 41.40 |
| product details |
| Sensor | SpO2 sensor, Heart Rate tracker, Sleep tracker, Female health tracker | SpO2 Sensor, Heart Rate Sensor |
| Compatible Device | Android, iOS | - |
| Notification | Yes | Yes |
| Notification Type | Smart Notification | Call, Message, Alarms, Reminders |
| Battery Type | Lithium Ion | - |
| Battery Life | 5 Days | 7 days |
| Charge Time | 2.5 hours | 2 hours |
| Charger Type | Magnetic Charger | - |
| Rechargeable Battery | Yes | - |
| Stand By Time | - | 35 days |
| connectivity features |
| Bluetooth | Bluetooth | Yes |
| Bluetooth Version | Bluetooth 5.2 | 5.3 |
| Call Function | - | Yes |
| Call Features | - | Reject Calls, Take Calls, Call Logs, Dial Pad |
| platform and storage features |
| Compatible Operating System | Android, iOS | iOS 11 or above, Android 9.0 or above |
| camera and display features |
| Display Resolution | 466x466 pixels | - |
| Display Size | 36mm | - |
| Display Type | Super AMOLED | - |
| Other Display Features | 600 nits brightness, Always-on Display | - |
| fitness and watch functions |
| Step Count | Yes | Yes |
| Calorie Count | Yes | Yes |
| Heart Rate Monitor | Yes | Yes |
| Calendar | Yes | - |
| Alarm Clock | Yes | Yes |
| Date & Time Display | Yes | Yes |
| Number of Buttons | 1 | - |
| Other Fitness Features | Activity Tracker, Breathe, Voice Assistance, Sedentary Reminder, Sleep Monitor, 123+ sports modes | 100 Sports Modes, Auto Sports Detection |
| Other Watch Functions | Alarm Clock, Bluetooth Calling, Voice Assistance, In Built Mic & Speaker, Music Player, Notifications, Phone Call, 150+ watch faces, Find My Feature | - |
| audio and video features |
| Speaker | Yes | Yes |
| Microphone | Yes | Yes |