| key specs |
| Strap Colour | Black, Gold, Silver, Gunmetal | Black, Blue, Gold, Green, Grey, Pink, Purple |
| Display Size | 35mm | 43mm |
| Compatible OS | Android, iOS | - |
| Dial Shape | Round | Square |
| Strap Material | - | Silicone |
| Ideal For | - | Unisex |
| general |
| Brand | Pebble | Fire-Boltt |
| Model | Cosmos Bold Pro | Ninja Bell |
| Release date | May 3, 2023 | June 1, 2022 |
| Model Number | PFB42 | BSW040 |
| Model Name | Cosmos Bold Pro | Fire-Boltt Ninja Bell |
| Dial Shape | Round | Square |
| Strap Colour | Black, Gold, Silver, Gunmetal | Black, Blue, Gold, Green, Grey, Pink, Purple |
| Size | Regular | Regular |
| Interchangeable Strap | Yes | - |
| Water Resistant | IP67 | Yes |
| Dial Material | Metal | - |
| Dial Colour | - | Gold |
| Strap Material | - | Silicone |
| Touchscreen | - | Yes |
| Usage | - | Fitness & Outdoor |
| Ideal For | - | Unisex |
| product details |
| Sensor | SpO2 sensor, Heart Rate tracker, Sleep tracker | SpO2 Monitoring, Heart Rate Monitor, Optical Heart Rate Sensor |
| Compatible Device | Android, iOS | Android, iOS |
| Notification | Yes | Call, Text, Social Media |
| Notification Type | Calls, Sms, Email, Whatsapp and Social Media | - |
| Battery Life | 5 days | - |
| Charger Type | Wired charging | - |
| Stand By Time | 7 days | 25 Days |
| Rechargeable Battery | Yes | Yes |
| Other Features | Alarm & Notification, Zen Mode, Sleep, Display Timer, Flashlight, Find Phone, Voice Assistant, Music, Camera Shutter, Menu Style | - |
| Closure | - | Strap Buckle |
| connectivity features |
| Call Function | Yes | Yes |
| Bluetooth | Bluetooth | Yes |
| Messaging Support | Yes | - |
| Call Features | - | Reject Calls, Take Calls, Speed Dial, Save Contacts, Call History, Calling Support via inbuilt Mic and Speaker |
| Other Connectivity Features | - | Smart notifications |
| platform and storage features |
| Compatible Operating System | Android, iOS | - |
| camera and display features |
| Display Resolution | 360x360 pixels | 240x280 |
| Display Size | 35mm | 43mm |
| Other Display Features | 500 nits brightness, IPS HD display | Touch Screen |
| fitness and watch functions |
| Step Count | Yes | Yes |
| Heart Rate Monitor | Yes | Yes |
| Calendar | Yes | - |
| Alarm Clock | Yes | Yes |
| Date & Time Display | Yes | Yes |
| Number of Buttons | 1 | 1 |
| Other Fitness Features | Steps pedometer, SPO2, Heart Rate Monitor, over 100 sports modes | Sleep tracking |
| Other Watch Functions | Alarm & Notification, Zen Mode, Sleep, Find Phone, Voice Assistant, Music, Camera Shutter, Menu Style | Sedentary reminders |
| Chronograph | - | Yes |
| Language | - | English |
| dimensions |
| Width | - | 44.17 |
| Height | - | 35.78 |
| Thickness | - | 11.6 |
| Diameter | - | 43 |
| Weight (g) | - | 51.00 |