boAt Chrome Iris vs Fire-Boltt Ultron comparison
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| key specs |
| Display Size | 33mm | - |
| Dial Shape | Round | Round |
| Display Type | AMOLED | Super AMOLED |
| Ideal For | Unisex | Unisex |
| Compatible OS | - | Android, iOS |
| Strap Material | - | Silicone |
| general |
| Brand | boAt | Fire-Boltt |
| Model | Chrome Iris | Ultron |
| Release date | February 9, 2026 | January 6, 2022 |
| Dial Shape | Round | Round |
| Size | Regular | Regular |
| Touchscreen | 1.32 | Yes |
| Water Resistant | IP68 | 3ATM |
| Usage | Regular | - |
| Dial Material | Metal | Stainless Steel |
| Ideal For | Unisex | Unisex |
| Model Name | - | Ultron |
| Dial Colour | - | Silver |
| Strap Material | - | Silicone |
| Interchangeable Strap | - | Yes |
| product details |
| Sensor | heart rate, SpO2, steps | - |
| Battery Type | 180mAh | - |
| Battery Life | 5 days | - |
| Charge Time | 120 minutes | - |
| Rechargeable Battery | Yes | Yes |
| Compatible Device | - | Android, iPhone |
| Notification | - | Yes |
| connectivity features |
| Call Function | Yes | Yes |
| Bluetooth | Yes | Bluetooth |
| Bluetooth Version | 5.4 | 5 |
| Operating Range | - | 10m |
| Call Features | - | Incoming Call Vibrate Alert |
| camera and display features |
| Display Resolution | 466 x 466 | 390x390 |
| Display Size | 33mm | - |
| Display Type | AMOLED | Super AMOLED |
| Other Display Features | 1,000 nits brightness, Always-on Display | - |
| Backlight Display | - | Yes |
| fitness and watch functions |
| Step Count | Yes | Yes |
| Heart Rate Monitor | Yes | Yes |
| Alarm Clock | Yes | Yes |
| Date & Time Display | Yes | Yes |
| Language | English | - |
| Calorie Count | - | Yes |
| Altimeter | - | No |
| Calendar | - | Yes |
| Chronograph | - | No |
| Number of Buttons | - | 1 |
| Other Fitness Features | - | SPO2, Heart Rate Tracking, Always-on Display, 14 sports modes,Magic Crown Rotary Button |
| audio and video features |
| Speaker | Yes | - |
| Microphone | Yes | - |
| platform and storage features |
| Compatible Operating System | - | Android, iOS |
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