Fastrack Limitless FS2 Pro Smartwatch vs Fire Boltt Ninja Ring X Smartwatch
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General
| Country of Origin | India | |
| Brand | Fastrack | Fire Boltt |
| Model Name | Limitless FS2 Pro | Ninja Ring X |
| Ideal For | Men, Women | Men, Women |
| Sales Package | Smartwatch, User Manual, Charger | Smartwatch, User Manual, Warranty Card |
Design and Body
| Material | Zinc Alloy | |
| Strap | Nylon | |
| Shape | Rectangle | Rectangle |
| Water Resistant | Yes | Yes |
| Water Resistant Certificate | IP67 |
Display
| Type | Color Super AMOLED | Color TFT |
| Touch | Yes | Yes |
| Size | 1.96 inches | 1.96 inches |
| Resolution | 410 x 502 pixels | 240 x 296 pixels |
| PPI | 331 ppi | 194 ppi |
| Always On Display | Yes | Yes |
| Features | 320 Nits Brightness |
Connectivity
| Wi-Fi | No | |
| Bluetooth | Yes, 5.2 | Yes, 5.3 |
| Bluetooth Calling | Yes | Yes |
| GPS | No |
Extra
| Voice Assistant | Yes | |
| Inbuilt Microphone | Yes | Yes |
| Inbuilt Speaker | Yes | Yes |
| Notifications | Yes | |
| Extra Features | 110+ Multi Sport Tracker, 200+ Watch Faces | 120 Sports Mode, Music & Camera Control |
Technical
| Compatible OS | Android, iOS | Android and iOS |
Multimedia
| No | ||
| Music | No |
Battery
| Battery Capacity | 280 mAh | |
| Battery Type | Lithium Polymer | Lithium Ion |
| Removable Battery | Non-Removable Battery | |
| Battery Backup | 7 days | |
| Charging Time | 2 hours | |
| StandBy Time | 15 days |
Fitness Features and Sensors
| Heart Rate Monitor | Yes | Yes |
| SpO2 (Blood Oxygen) Monitor | Yes | |
| BP Monitor | Yes | No |
| Pedometer | Yes | Yes |
| Altimeter | No | |
| Sleep Monitor | Yes | Yes |
| Reminder | Yes | Yes |
| Meters and Sensors | Calorie Count, Step Count | Accelerometer, Calorie Count, Step Count |
| Extra Features | Alarm Clock, Stopwatch, Timer | Alarm Clock, Stopwatch, Timer |
Warranty
| Warranty | 1 year, Warranty on Product | 1 year |
| Covered in Warranty | Manufacturing Defects | |
| Not Covered in Warranty | Physical & Water Damage |
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