| key specs |
| Strap Colour | Black, Gold, Silver, Gunmetal | Black, Blue, Teal |
| Display Size | 35mm | 50mm |
| Compatible OS | Android, iOS | - |
| Dial Shape | Round | Square |
| Display Type | - | Super AMOLED |
| general |
| Brand | Pebble | Fastrack |
| Model | Cosmos Bold Pro | Revoltt FS1 Pro |
| Release date | May 3, 2023 | April 24, 2023 |
| Model Number | PFB42 | - |
| Model Name | Cosmos Bold Pro | Revoltt FS1 Pro |
| Dial Shape | Round | Square |
| Strap Colour | Black, Gold, Silver, Gunmetal | Black, Blue, Teal |
| Size | Regular | - |
| Interchangeable Strap | Yes | - |
| Water Resistant | IP67 | IP68 |
| Dial Material | Metal | - |
| product details |
| Sensor | SpO2 sensor, Heart Rate tracker, Sleep tracker | Heart Rate tracker |
| Compatible Device | Android, iOS | - |
| Notification | Yes | Yes |
| Notification Type | Calls, Sms, Email, Whatsapp and Social Media | Smart Notification |
| Battery Life | 5 days | - |
| Charger Type | Wired charging | - |
| Stand By Time | 7 days | - |
| Rechargeable Battery | Yes | Yes |
| Other Features | Alarm & Notification, Zen Mode, Sleep, Display Timer, Flashlight, Find Phone, Voice Assistant, Music, Camera Shutter, Menu Style | Activity Tracker, Heart Rate Tracking, Bluetooth Calling , Voice Assistance, 110+ Sports Mode Tracking, In Built Mic & Speaker,IP68 Rating, Sleep Monitor, Fast charging |
| connectivity features |
| Call Function | Yes | Yes |
| Bluetooth | Bluetooth | Bluetooth |
| Messaging Support | Yes | - |
| platform and storage features |
| Compatible Operating System | Android, iOS | - |
| camera and display features |
| Display Resolution | 360x360 pixels | 410 X 502 |
| Display Size | 35mm | 50mm |
| Other Display Features | 500 nits brightness, IPS HD display | Always-on Display |
| Display Type | - | Super AMOLED |
| fitness and watch functions |
| Step Count | Yes | Yes |
| Heart Rate Monitor | Yes | Yes |
| Calendar | Yes | - |
| Alarm Clock | Yes | - |
| Date & Time Display | Yes | - |
| Number of Buttons | 1 | - |
| Other Fitness Features | Steps pedometer, SPO2, Heart Rate Monitor, over 100 sports modes | Activity Tracker, 110 Sports Mode Tracking |
| Other Watch Functions | Alarm & Notification, Zen Mode, Sleep, Find Phone, Voice Assistant, Music, Camera Shutter, Menu Style | Bluetooth Calling, Voice Assistance, In Built Mic & Speaker, IP68 Rating |