| key specs |
| Strap Colour | Black | Black, Brown |
| Display Size | 34mm | 44mm |
| Compatible OS | Android, iOS | Android, iOS |
| Dial Shape | Round | Round |
| Display Type | AMOLED | AMOLED |
| Ideal For | Unisex | Men |
| general |
| Brand | Fire-Boltt | Fossil |
| Model | Invincible | Gen 5E (44mm) |
| Release date | October 1, 2021 | October 5, 2020 |
| Model Number | BSW020 | - |
| Model Name | Invincible | Gen 5E (44mm) |
| Dial Shape | Round | Round |
| Size | Regular | Regular |
| Touchscreen | Yes | Yes |
| Water Resistant | IP67 | 3 ATM |
| Ideal For | Unisex | Men |
| Strap Colour | Black | Black, Brown |
| Interchangeable Strap | - | Yes |
| Dial Material | - | Stainless Steel |
| Dial Colour | - | Black |
| dimensions |
| Width | 45 | - |
| Height | 45 | - |
| Thickness | 11 | - |
| Weight (g) | 51.00 | - |
| product details |
| Sensor | Accelerometer Sensor, Barometer Sensor, Gyro Sensor, Light Sensor, Optical Heart Rate Sensor, SpO2 Sensor | Accelerometer, gyroscope, off-body IR, PPG heart rate sensor |
| Compatible Device | Android, iPhone | Android, iOS |
| Notification | Yes | Yes |
| Battery Life | 7 days | 24 hours |
| Charge Time | 2 hours | - |
| Charger Type | Magnetic | - |
| Stand By Time | 15 days | - |
| Rechargeable Battery | Yes | Yes |
| Other Features | - | 80 percent in 50 minutes, Daily Mode, Extended Mode, Time Only Mode, Custom Mode |
| connectivity features |
| Call Function | Yes | Yes |
| Bluetooth | Bluetooth | Yes |
| Bluetooth Version | 5.0 | 4.2 LE |
| Wi-Fi | - | Yes |
| GPS | - | Yes |
| Messaging Support | - | Yes |
| Email Support | - | Yes |
| platform and storage features |
| Compatible Operating System | Android, iOS | Android, iOS |
| Operating System | - | Wear OS |
| RAM | - | 1GB |
| Internal Memory | - | 4GB |
| camera and display features |
| Display Resolution | 454x454 | 390x390 |
| Display Size | 34mm | 44mm |
| Display Type | AMOLED | AMOLED |
| Other Display Features | Always-On Display | - |
| fitness and watch functions |
| Step Count | Yes | Yes |
| Calorie Count | Yes | Yes |
| Heart Rate Monitor | Yes | Yes |
| Calendar | Yes | Yes |
| Alarm Clock | Yes | Yes |
| Date & Time Display | Yes | Yes |
| Language | English | English |
| Other Fitness Features | 100 sports modes | Google Fit, activity goals, steps, sleep, heart rate, cardio level |
| Other Watch Functions | 8GB storage, 100 watch faces, calculator, TWS Connect, Quick Dial, flashlight | Always-on display, |
| Compass | - | Yes |
| Number of Buttons | - | 1 |
| audio and video features |
| Speaker | Yes | Yes |
| Microphone | Yes | Yes |
| Other Multimedia Features | music control, camera control | - |
| Voice Control | - | Yes |