| key specs |
| Strap Colour | Black, Silver, Gold, Active Black, Brown | Obsidian Black, Classic Silver, and Rose Gold |
| Display Size | 36mm | 36mm |
| Compatible OS | Android, iOS | Android, iOS |
| Strap Material | Stainless Steel | - |
| Dial Shape | Round | Round |
| Display Type | - | AMOLED |
| general |
| Brand | Fire-Boltt | Pebble |
| Model | Ultimate | Cosmos Vault |
| Release date | June 19, 2023 | May 24, 2023 |
| Model Number | BSW158 | PFB204 |
| Model Name | Ultimate | Cosmos Vault |
| Dial Colour | Black | Black |
| Dial Shape | Round | Round |
| Strap Colour | Black, Silver, Gold, Active Black, Brown | Obsidian Black, Classic Silver, and Rose Gold |
| Strap Material | Stainless Steel | - |
| Touchscreen | Yes | - |
| Water Resistant | IP68 | No |
| Dial Material | - | Metal Alloy |
| dimensions |
| Width | 46.6mm | 10 |
| Height | 50.6mm | - |
| Thickness | 10.4mm | - |
| Diameter | 35.3mm | - |
| Weight (g) | 80.00 | 102.00 |
| product details |
| Sensor | SPO2, Heart Rate Tracking, women health tracker | SpO2 sensor, Heart Rate tracker, Sleep tracker, Female health tracker |
| Compatible Device | Android, iOS | Android, iOS |
| Notification | Yes | Yes |
| Notification Type | Calls, Sms, Whatsapp and Social Media | Calls, Sms, Email, Whatsapp and Social Media |
| Battery Type | Lithium Ion | Lithium Polymer |
| Battery Life | 7 days | 7 days |
| Charge Time | 2 hours | 2 hours |
| Stand By Time | 20 days | 7 days |
| Rechargeable Battery | Yes | Yes |
| Maximum Operating Altitude | - | 5m |
| Talk time | - | 5 |
| Charger Type | - | Magnetic Charger |
| connectivity features |
| Call Function | Yes | Yes |
| Bluetooth | Bluetooth | Bluetooth |
| Bluetooth Version | Bluetooth 5.0 | Bluetooth 5.0 |
| Operating Range | - | 10m |
| platform and storage features |
| Compatible Operating System | Android, iOS | Android, iOS |
| camera and display features |
| Display Resolution | 240 x 240 pixels | 466x466 pixels |
| Display Size | 36mm | 36mm |
| Display Type | - | 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 | 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 | Activity Tracker, Voice Assistance, Multiple Sports Mode, Calorie Tracker, Sleep Monitor, Time Display |
| Other Watch Functions | Music Control, Remote Camera Control, Alarm, Timer, Stopwatch, Weather Forecast, Support For Multiple Watch Faces, A Rotating Crown Button | Alarm Clock, Bluetooth Calling, Voice Assistance, In Built Mic & Speaker, Calculator, Notifications, Pedometer, Phone Call |
| Compass | - | Yes |
| Date & Time Display | - | Yes |