| key specs |
| Strap Colour | Green, Blue, and Rose Gold | Black, Gold, Grey |
| Compatible OS | Android, iOS | - |
| Strap Material | Stainless Steel | Silicone |
| Dial Shape | Round | Round |
| Ideal For | Women | Unisex |
| Display Size | - | 33mm |
| Display Type | - | AMOLED |
| general |
| Brand | Fire-Boltt | Fire-Boltt |
| Model | Emerald | Thunder |
| Release date | August 9, 2023 | March 11, 2022 |
| Model Number | BSW066 | BSW028 |
| Model Name | Fire-Boltt Emerald | Thunder |
| Dial Shape | Round | Round |
| Strap Colour | Green, Blue, and Rose Gold | Black, Gold, Grey |
| Strap Material | Stainless Steel | Silicone |
| Size | Regular | Regular |
| Interchangeable Strap | Yes | - |
| Water Resistant | IP68 | IP68 |
| Ideal For | Women | Unisex |
| dimensions |
| Width | 10cm | 46 |
| Height | 8.5cm | 46 |
| Thickness | 6.5cm | 12 |
| Weight (g) | 60.00 | 64.00 |
| product details |
| Sensor | SpO2 sensor, Heart Rate tracker, Sleep tracker, Female health tracker | - |
| Compatible Device | Android, iOS | - |
| Notification | Yes | - |
| Notification Type | Smart Notification | - |
| Talk time | 5 days | - |
| Battery Type | Lithium Ion | - |
| Charge Time | 2 hours | - |
| Rechargeable Battery | Yes | - |
| Battery Life | - | 10 days |
| connectivity features |
| Call Function | Yes | Yes |
| Bluetooth | Bluetooth | - |
| Wi-Fi | Yes | - |
| Bluetooth Version | - | 5.0 |
| Call Features | - | Bluetooth Calling |
| platform and storage features |
| Compatible Operating System | Android, iOS | - |
| camera and display features |
| Display Resolution | 160x80 | 360x360 |
| Display Size | - | 33mm |
| Display Type | - | AMOLED |
| fitness and watch functions |
| Heart Rate Monitor | Yes | Yes |
| Compass | Yes | - |
| Calendar | Yes | - |
| Alarm Clock | Yes | Yes |
| Date & Time Display | Yes | Yes |
| Number of Buttons | 1 | 2 |
| Other Fitness Features | 100+ Sports Mode Tracking, Activity Tracker, Breathe, SpO2, Heart Rate Tracking, Multisport Tracker, Pedometer, Calorie Tracker, Daily Workout Memory, Distance Tracker | Body Temperature, SpO2 Monitoring, Sleep Tracking, |
| Other Watch Functions | In Built Mic & Speaker, Accelerometer, Alarm Clock, Music Player, Notifications, Camera, Sedentary Reminder | - |
| Step Count | - | Yes |
| audio and video features |
| Speaker | Yes | - |
| Microphone | Yes | - |