| key specs |
| Strap Colour | Multicolour | Black |
| Display Size | 35mm | 44mm |
| Compatible OS | Android, iOS | - |
| Strap Material | Silicone | Silicone |
| Dial Shape | Round | Square |
| Display Type | - | TFT LED |
| Ideal For | - | Unisex |
| general |
| Brand | Pebble | Fire-Boltt |
| Model | Revolve | Tornado Calling |
| Release date | July 27, 2023 | May 19, 2022 |
| Model Number | PFB55 | BSW035 |
| Model Name | Revolve | Tornado Calling |
| Dial Colour | Black | Black |
| Dial Shape | Round | Square |
| Strap Colour | Multicolour | Black |
| Strap Material | Silicone | Silicone |
| Size | Regular | Regular |
| Interchangeable Strap | Yes | Yes |
| Water Resistant | IP67 | Yes |
| Touchscreen | - | Yes |
| Water Resistance Depth | - | 1m |
| Dial Material | - | Zinc Alloy |
| Ideal For | - | Unisex |
| dimensions |
| Width | 18 cm | 34 |
| Height | 15 cm | 39 |
| Thickness | 2.5 cm | 9.8 |
| Diameter | 35.3 | 43 |
| Weight (g) | 270.00 | 37.00 |
| product details |
| Sensor | SPO2, Heart Rate Tracking, women health tracker | SpO2, Heart Rate Sensor, Accelerometer, Barometer |
| Compatible Device | Android, iPhone | Android phones |
| Notification | Yes | Call, SMS, WhatsApp, Facebook, Twiter, Other Social Apps, Sedentary Reminder, Goal Completion |
| Battery Life | 7 days | 15 Days |
| Charger Type | Wireless | USB Cable With Metallic Charging Points |
| Rechargeable Battery | Yes | Yes |
| Other Features | Always-on display | - |
| Closure | - | Buckle |
| Notification Type | - | Vibration, Ringer |
| Battery Type | - | Lithium Ion |
| Charge Time | - | 120 min |
| Stand By Time | - | 360 Hours |
| connectivity features |
| Call Function | Yes | Yes |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.1 | 5.0 |
| Email Support | - | Yes |
| Operating Range | - | 10m |
| Third Party App Support | - | Limited Support |
| Call Features | - | Reject Calls, Take Calls, Speed Dial, Save Contacts, Call History, Can talk with inbuilt mic and speaker |
| platform and storage features |
| Compatible Operating System | Android, iOS | - |
| camera and display features |
| Display Size | 35mm | 44mm |
| Other Display Features | Always-on Display | - |
| Display Resolution | - | 320x380 |
| Display Type | - | TFT LED |
| Backlight Display | - | No |
| Scratch Resistant | - | Yes |
| fitness and watch functions |
| Step Count | Yes | Yes |
| Calorie Count | Yes | Yes |
| Heart Rate Monitor | Yes | Yes |
| Compass | Yes | - |
| Calendar | Yes | - |
| Alarm Clock | Yes | Yes |
| Date & Time Display | Yes | Yes |
| Number of Buttons | 1 | 1 |
| Other Fitness Features | Activity Tracker, Multiple Sports Mode Tracking, Calorie Tracker, Sleep Monitor | - |
| Other Watch Functions | Alarm Clock, Bluetooth Calling, Voice Assistance, In Built Mic & Speaker, IP67 Rating, Calculator, Music Player, Notifications, Phone Call, Camera control, Zen mode, Raise to Wake | - |
| Chronograph | - | Yes |
| Language | - | English |
| audio and video features |
| Speaker | Yes | Yes |
| Microphone | Yes | Yes |
| Voice Control | - | Yes |