| key specs |
| Strap Colour | Black, Silver, Gold, Active Black, Brown | Charcoal Black, Champagne Grey, Olive Green |
| Display Size | 36mm | 44mm |
| Compatible OS | Android, iOS | - |
| Strap Material | Stainless Steel | Silicone |
| Dial Shape | Round | Rectangle |
| Ideal For | - | Unisex |
| general |
| Brand | Fire-Boltt | Noise |
| Model | Ultimate | ColorFit Ultra Buzz |
| Release date | June 19, 2023 | April 26, 2022 |
| Model Number | BSW158 | - |
| Model Name | Ultimate | Noise ColorFit Ultra Buzz |
| Dial Colour | Black | Black |
| Dial Shape | Round | Rectangle |
| Strap Colour | Black, Silver, Gold, Active Black, Brown | Charcoal Black, Champagne Grey, Olive Green |
| Strap Material | Stainless Steel | Silicone |
| Touchscreen | Yes | - |
| Water Resistant | IP68 | Yes |
| Size | - | Large |
| Interchangeable Strap | - | Yes |
| Water Resistance Depth | - | IP68 |
| Usage | - | Fitness & Outdoor |
| Dial Material | - | Plastic |
| Ideal For | - | Unisex |
| dimensions |
| Width | 46.6mm | 46.6 |
| Height | 50.6mm | 38.6 |
| Thickness | 10.4mm | 11.9 |
| Diameter | 35.3mm | - |
| Weight (g) | 80.00 | 42.50 |
| product details |
| Sensor | SPO2, Heart Rate Tracking, women health tracker | - |
| Compatible Device | Android, iOS | Android, iOS |
| Notification | Yes | Call, Text, Social Media |
| Notification Type | Calls, Sms, Whatsapp and Social Media | Vibration |
| Battery Type | Lithium Ion | 300 |
| Battery Life | 7 days | 5 Days |
| Charge Time | 2 hours | 2.5 |
| Stand By Time | 20 days | 45 Days |
| Rechargeable Battery | Yes | Yes |
| Closure | - | Strap Buckle |
| connectivity features |
| Call Function | Yes | Yes |
| Bluetooth | Bluetooth | Yes |
| Bluetooth Version | Bluetooth 5.0 | 5.1 |
| Messaging Support | - | Yes |
| platform and storage features |
| Compatible Operating System | Android, iOS | - |
| camera and display features |
| Display Resolution | 240 x 240 pixels | 320x385 |
| Display Size | 36mm | 44mm |
| fitness and watch functions |
| Step Count | Yes | Yes |
| Calorie Count | Yes | - |
| Heart Rate Monitor | Yes | Yes |
| Calendar | Yes | Yes |
| Alarm Clock | Yes | Yes |
| Number of Buttons | 2 | 1 |
| Other Fitness Features | Activity Tracker, 123 Sports Mode Tracking, Sedentary Reminder, Sleep Monitor, Women health tracker | Sleep Monitoring, Blood Oxygen Monitor, 24x7 Heart Rate Monitor |
| Other Watch Functions | Music Control, Remote Camera Control, Alarm, Timer, Stopwatch, Weather Forecast, Support For Multiple Watch Faces, A Rotating Crown Button | - |
| Date & Time Display | - | Yes |
| audio and video features |
| Speaker | - | Yes |
| Microphone | - | Yes |