| key specs |
| Strap Colour | Green, Blue, and Rose Gold | Black |
| Compatible OS | Android, iOS | Android, iOS |
| Strap Material | Stainless Steel | Silicone |
| Dial Shape | Round | Rectangle |
| Ideal For | Women | Unisex |
| Display Size | - | 33mm |
| general |
| Brand | Fire-Boltt | Fire-Boltt |
| Model | Emerald | Ninja |
| Release date | August 9, 2023 | August 4, 2021 |
| Model Number | BSW066 | BSW007 |
| Model Name | Fire-Boltt Emerald | Ninja touch to Wake SpO2 |
| Dial Shape | Round | Rectangle |
| Strap Colour | Green, Blue, and Rose Gold | Black |
| Strap Material | Stainless Steel | Silicone |
| Size | Regular | Regular |
| Interchangeable Strap | Yes | - |
| Water Resistant | IP68 | Yes |
| Ideal For | Women | Unisex |
| Touchscreen | - | Yes |
| Water Resistance Depth | - | 1m |
| Dial Material | - | Metal |
| Dial Colour | - | Black |
| dimensions |
| Width | 10cm | 41 |
| Height | 8.5cm | 34 |
| Thickness | 6.5cm | 10 |
| Weight (g) | 60.00 | 80.00 |
| Diameter | - | 33 |
| 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, Blood Pressure Monitor |
| Compatible Device | Android, iOS | Android, iPhone |
| Notification | Yes | Yes |
| Notification Type | Smart Notification | - |
| Talk time | 5 days | - |
| Battery Type | Lithium Ion | Li-ion |
| Charge Time | 2 hours | 120 minutes |
| Rechargeable Battery | Yes | Yes |
| Battery Life | - | 5 days |
| Stand By Time | - | 15 days |
| connectivity features |
| Call Function | Yes | No |
| Bluetooth | Bluetooth | Bluetooth |
| Wi-Fi | Yes | - |
| Bluetooth Version | - | 5.0 |
| Messaging Support | - | Yes |
| Operating Range | - | 10m |
| Third Party App Support | - | Limited |
| platform and storage features |
| Compatible Operating System | Android, iOS | Android, iOS |
| camera and display features |
| Display Resolution | 160x80 | 240x240 |
| Display Size | - | 33mm |
| Backlight Display | - | Yes |
| Scratch Resistant | - | Yes |
| 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 | 7 sports modes |
| Other Watch Functions | In Built Mic & Speaker, Accelerometer, Alarm Clock, Music Player, Notifications, Camera, Sedentary Reminder | - |
| Step Count | - | Yes |
| Calorie Count | - | Yes |
| Chronograph | - | No |
| Language | - | English |
| audio and video features |
| Speaker | Yes | - |
| Microphone | Yes | - |