| key specs |
| Strap Colour | Green, Blue, and Rose Gold | Black |
| Compatible OS | Android, iOS | Android, iOS |
| Strap Material | Stainless Steel | - |
| Dial Shape | Round | Round |
| Ideal For | Women | Unisex |
| Display Size | - | 34mm |
| Display Type | - | AMOLED |
| general |
| Brand | Fire-Boltt | Fire-Boltt |
| Model | Emerald | Invincible |
| Release date | August 9, 2023 | October 1, 2021 |
| Model Number | BSW066 | BSW020 |
| Model Name | Fire-Boltt Emerald | Invincible |
| Dial Shape | Round | Round |
| Strap Colour | Green, Blue, and Rose Gold | Black |
| Strap Material | Stainless Steel | - |
| Size | Regular | Regular |
| Interchangeable Strap | Yes | - |
| Water Resistant | IP68 | IP67 |
| Ideal For | Women | Unisex |
| Touchscreen | - | Yes |
| dimensions |
| Width | 10cm | 45 |
| Height | 8.5cm | 45 |
| Thickness | 6.5cm | 11 |
| Weight (g) | 60.00 | 51.00 |
| product details |
| Sensor | SpO2 sensor, Heart Rate tracker, Sleep tracker, Female health tracker | Accelerometer Sensor, Barometer Sensor, Gyro Sensor, Light Sensor, Optical Heart Rate Sensor, SpO2 Sensor |
| Compatible Device | Android, iOS | Android, iPhone |
| Notification | Yes | Yes |
| Notification Type | Smart Notification | - |
| Talk time | 5 days | - |
| Battery Type | Lithium Ion | - |
| Charge Time | 2 hours | 2 hours |
| Rechargeable Battery | Yes | Yes |
| Battery Life | - | 7 days |
| Charger Type | - | Magnetic |
| Stand By Time | - | 15 days |
| connectivity features |
| Call Function | Yes | Yes |
| Bluetooth | Bluetooth | Bluetooth |
| Wi-Fi | Yes | - |
| Bluetooth Version | - | 5.0 |
| platform and storage features |
| Compatible Operating System | Android, iOS | Android, iOS |
| camera and display features |
| Display Resolution | 160x80 | 454x454 |
| Display Size | - | 34mm |
| Display Type | - | AMOLED |
| Other Display Features | - | Always-On Display |
| fitness and watch functions |
| Heart Rate Monitor | Yes | Yes |
| Compass | Yes | - |
| Calendar | Yes | Yes |
| Alarm Clock | Yes | Yes |
| Date & Time Display | Yes | Yes |
| Number of Buttons | 1 | - |
| Other Fitness Features | 100+ Sports Mode Tracking, Activity Tracker, Breathe, SpO2, Heart Rate Tracking, Multisport Tracker, Pedometer, Calorie Tracker, Daily Workout Memory, Distance Tracker | 100 sports modes |
| Other Watch Functions | In Built Mic & Speaker, Accelerometer, Alarm Clock, Music Player, Notifications, Camera, Sedentary Reminder | 8GB storage, 100 watch faces, calculator, TWS Connect, Quick Dial, flashlight |
| Step Count | - | Yes |
| Calorie Count | - | Yes |
| Language | - | English |
| audio and video features |
| Speaker | Yes | Yes |
| Microphone | Yes | Yes |
| Other Multimedia Features | - | music control, camera control |