Fastrack Radiant FX4 Smartwatch vs Fastrack Radiant FX3 Smartwatch
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General
| Brand | Fastrack | Fastrack |
| Model Name | Radiant FX4 | Radiant FX3 |
| Ideal For | Men, Women | Men, Women |
| Sales Package | Smartwatch, Charging Cable, Quick Start Guide | Smartwatch, Charging Cable, Quick Start Guide |
Design and Body
| Weight | 120 g | 126 g |
| Strap | Stainless steel | Stainless steel |
| Shape | Circle | Circle |
| Water Resistant | Yes | Yes |
| Water Resistant Depth | 1 m |
Display
| Type | Color AMOLED | Color AMOLED |
| Touch | Yes | Yes |
| Size | 1.51 inches | 1.43 inches |
| Resolution | 466 x 466 pixels | 466 x 466 pixels |
| PPI | 436 ppi | 461 ppi |
| Features | 550 Nits | 650 Nits |
Connectivity
| Bluetooth | Yes, 5.3 | Yes, 5.2 |
| Bluetooth Calling | Yes | Yes |
| Call Features | Call Answer, Call Reject, Call Mute, Call Notifications, Quick Replies (Android) | Call Answer, Call Reject, Call Mute, Call Notifications, Quick Replies (Android) |
Extra
| Notifications | Yes | Yes |
| Extra Features | Music & Camera Control, 100+ Watch Faces & Sports Mode | Camera and Music Control, 100+ Sports Mode and Watch Faces |
Technical
| Compatible OS | Android & iOS | Android & iOS |
Battery
| Battery Type | Lithium Polymer | Lithium Polymer |
| Removable Battery | Non-Removable Battery | Non-Removable Battery |
| Battery Backup | 5 days | 5 days |
Fitness Features and Sensors
| Heart Rate Monitor | Yes | Yes |
| SpO2 (Blood Oxygen) Monitor | Yes | Yes |
| Pedometer | Yes | |
| Compass | No | |
| Sleep Monitor | Yes | Yes |
| Reminder | Yes | Yes |
| Meters and Sensors | Accelerometer, Calorie Count, Step Count | Accelerometer, Calorie Count, Step Count |
| Extra Features | Alarm Clock, Stopwatch, Timer, Auto Stress, Women's Health, Activity Tracker, Breathe Exercise | Alarm Clock, Stopwatch, Timer, Auto Stress, Women's Health, Activity Tracker, Breathe Exercise |
Warranty
| Warranty | 1 year, Warranty on Product | 1 year, Warranty on Product |
| Covered in Warranty | Manufacturing Defects | Manufacturing Defects |
| Not Covered in Warranty | Physical Damage | Physical Damage |
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