| key specs |
| Strap Colour | Blue, Black | Black, Blue, Green, Grey, Peach, Red, White |
| Display Size | 48mm | 45mm |
| Strap Material | Silicone | Silicone |
| Dial Shape | - | Square |
| Ideal For | - | Unisex |
| general |
| Brand | Dizo | Fire-Boltt |
| Model | Watch D2 | Call |
| Release date | February 3, 2023 | January 1, 1970 |
| Model Name | Watch D2 | - |
| Dial Colour | Black | Black |
| Strap Colour | Blue, Black | Black, Blue, Green, Grey, Peach, Red, White |
| Strap Material | Silicone | Silicone |
| Size | Large | Regular |
| Dial Shape | - | Square |
| Touchscreen | - | Yes |
| Interchangeable Strap | - | Yes |
| Water Resistant | - | Yes |
| Ideal For | - | Unisex |
| dimensions |
| Width | 25.59 cm | - |
| Height | 3.86 cm | - |
| Thickness | 1.21 cm | - |
| Weight (g) | 42.00 | - |
| product details |
| Sensor | SpO2 sensor, Heart Rate tracker | blood oxygen saturation (SpO2) sensor, heart rate monitor, sleep monitor, meditative breathing sensor, menstrual reminders, sedentary reminders, hydration reminders |
| Notification | Yes | Yes |
| Notification Type | Smart Notification | - |
| Battery Life | 7 days | 5 days |
| Charge Time | 2.5 hours | - |
| Rechargeable Battery | Yes | Yes |
| Other Features | In-app GPS, mini-games, camera, music controls, find phone, weather forecast | - |
| Stand By Time | - | 30 days |
| connectivity features |
| Call Function | Yes | Yes |
| GPS | Yes | - |
| Call Features | Noise cancellation | Yes |
| Bluetooth | - | Bluetooth |
| Messaging Support | - | Yes |
| Email Support | - | Yes |
| camera and display features |
| Display Size | 48mm | 45mm |
| Backlight Display | - | Yes |
| Other Camera Features | - | Camera Remote |
| fitness and watch functions |
| Step Count | Yes | Yes |
| Calorie Count | Yes | Yes |
| Heart Rate Monitor | Yes | Yes |
| Calendar | Yes | - |
| Date & Time Display | Yes | Yes |
| Other Fitness Features | Gymnastics, dancing, taekwondo, horse riding, disc games, skipping ropes, hoverboards, menstrual tracking, drink water reminders | 7 sports modes |
| Other Watch Functions | Set an alarm, find phone, call and message notifications, | 200+ watch faces |
| Alarm Clock | - | Yes |
| Chronograph | - | Yes |
| Language | - | English |
| Number of Buttons | - | 1 |
| platform and storage features |
| Processor Name | - | FB1 Nanochip |
| audio and video features |
| Speaker | - | Yes |
| Microphone | - | Yes |