| key specs |
| Display Size | 33mm | 43mm |
| Compatible OS | Android, iOS | Android 5.0+, iOS 11+ |
| Strap Material | Stainless Steel | Silicone |
| Dial Shape | Round | Rectangle |
| Ideal For | - | Unisex |
| general |
| Brand | Fire-Boltt | Realme |
| Model | Blizzard | TechLife Watch SZ100 |
| Release date | February 23, 2023 | May 18, 2022 |
| Model Name | Blizzard | - |
| Dial Shape | Round | Rectangle |
| Strap Material | Stainless Steel | Silicone |
| Water Resistant | IP67 | IP68 |
| Size | - | Large |
| Interchangeable Strap | - | Yes |
| Usage | - | Fitness and Outdoor |
| Ideal For | - | Unisex |
| product details |
| Sensor | Accelerometer, SpO2 sensor, Heart Rate sensor | 3-axis accelerometer, optical heart rate sensor, SpO2 |
| Compatible Device | Android, iOS | Android, iPhone |
| Notification | Yes | Yes |
| Battery Life | 7 days | 12 days |
| Charger Type | Magnetic Charger | - |
| Rechargeable Battery | Yes | - |
| connectivity features |
| Call Function | Yes | - |
| Bluetooth | Bluetooth | Yes |
| Bluetooth Version | Bluetooth 5.1 | 5.1 |
| Messaging Support | Yes | - |
| Email Support | Yes | - |
| Operating Range | 10m | - |
| platform and storage features |
| Compatible Operating System | Android, iOS | Android 5.0+, iOS 11+ |
| camera and display features |
| Display Resolution | 240x240 pixels | 240x280 |
| Display Size | 33mm | 43mm |
| Other Display Features | - | 218ppi pixel density, 530 nits of screen brightness |
| fitness and watch functions |
| Step Count | Yes | Yes |
| Calorie Count | Yes | - |
| Heart Rate Monitor | Yes | Yes |
| Compass | Yes | - |
| Calendar | Yes | Yes |
| Alarm Clock | Yes | Yes |
| Date & Time Display | Yes | Yes |
| Number of Buttons | 2 | - |
| Other Fitness Features | Calorie Tracker, Distance Tracker, Daily Workout Memory, Sleep Monitor, 120 Sports Mode, Accelerometer, Activity Tracker | 24 sports modes, sleep monitor |
| Other Watch Functions | In Built Mic & Speaker, Bluetooth Calling , Voice Assistance, Alarm Clock, Notifications, Phone Call, Camera, Text message, Time Display, In-built Games, Pedom | - |
| Chronograph | - | Yes |
| audio and video features |
| Speaker | Yes | - |
| Gesture Control | Yes | - |
| Microphone | Yes | - |
| dimensions |
| Width | - | 35.8 |
| Thickness | - | 11.6 |
| Weight (g) | - | 34.00 |