| key specs |
| Strap Colour | Black, Blue, Champagne Gold, Olive, Pink Gold, Red Navy, Rose Gold Yellow | Black Viton, Brown Leather, Blue Leather |
| Display Size | 40mm | 36mm |
| Strap Material | Silicone | - |
| Dial Shape | Square | Round |
| Ideal For | Unisex | Unisex |
| Display Type | - | AMOLED |
| general |
| Brand | Fire-Boltt | Xiaomi |
| Model | Ninja Pro Max | Watch S1 |
| Release date | February 10, 2022 | December 28, 2021 |
| Model Name | Fire-Boltt Ninja Pro Max | - |
| Dial Colour | Black | Silver |
| Dial Shape | Square | Round |
| Strap Colour | Black, Blue, Champagne Gold, Olive, Pink Gold, Red Navy, Rose Gold Yellow | Black Viton, Brown Leather, Blue Leather |
| Strap Material | Silicone | - |
| Size | Regular | Regular |
| Touchscreen | Yes | Yes |
| Water Resistant | Yes | Yes |
| Usage | Fitness & Outdoor | - |
| Ideal For | Unisex | Unisex |
| Model Number | - | M2108W1 |
| Interchangeable Strap | - | Yes |
| Water Resistance Depth | - | 5ATM |
| Dial Material | - | Stainless steel |
| dimensions |
| Width | 34.5 | 46.5 |
| Height | 41.5 | 46.5 |
| Thickness | 9.5 | 11 |
| Diameter | 40 | - |
| Weight (g) | 45.00 | - |
| product details |
| Closure | Strap Buckle | - |
| Sensor | SpO2 Monitoring, Heart Rate Monitor, Optical Heart Rate Sensor | Heart rate sensor, SpO2 sensor, acceleration sensor, gyroscope, geomagnetic sensor, air pressure sensor, ambient light sensor |
| Compatible Device | Android, iOS | Android, iPhone |
| Notification | Call, Text, Social Media | Yes |
| Battery Type | 200 | Li-ion polymer |
| Battery Life | 8 Days | 12 days |
| Stand By Time | 30 days | - |
| Rechargeable Battery | Yes | - |
| connectivity features |
| Call Function | Yes | Yes |
| Bluetooth | Yes | Bluetooth |
| Bluetooth Version | 5 | v5.2 |
| Call Features | Reject calls | Yes |
| Other Connectivity Features | Smart notifications | - |
| Wi-Fi | - | Yes |
| GPS | - | Yes |
| Messaging Support | - | Yes |
| camera and display features |
| Display Resolution | 240x288 | 466x466 |
| Display Size | 40mm | 36mm |
| Other Display Features | Touch Screen | - |
| Display Type | - | AMOLED |
| Backlight Display | - | Yes |
| fitness and watch functions |
| Step Count | Yes | Yes |
| Heart Rate Monitor | Yes | Yes |
| Date & Time Display | Yes | Yes |
| Language | English | Simplified Chinese |
| Number of Buttons | 1 | 2 |
| Other Fitness Features | Meditative breathing, sleep tracking, drink water reminders | 117 sports modes |
| Other Watch Functions | Stopwatch, sedentary reminders | - |
| Calorie Count | - | Yes |
| Calendar | - | Yes |
| Alarm Clock | - | Yes |
| Chronograph | - | Yes |
| audio and video features |
| Speaker | - | Yes |
| Microphone | - | Yes |