Copyright ©2025 Shenzhen Grandtime Technology Co., Ltd. All Rights Reserved Copyright
1) Removable 3500mAh Batter
2) 2.4 Inch touch screen
3) 1GB + 8GB memory
4) OS Android 7.1
5) Dual camera: 2MP front camera,5MP rear camera
6) IP54 rating
7) Built-in BDS+GPS
8) Support 3G 4G SIM Card or Wi-Fi Internet for Network Connection
9) Support single call, group call, private call
10) Support PTT two ways talking globally
11) Support storage expansion, up to 32G
F25 is a compact, rugged, and easy-to-operate handheld POC radio that enables Push-to-Talk over Cellular using Wi-Fi and the existing 3G/4G/LTE infrastructure of Mobile Network Operators.
| Battery | 3500mAh removable battery |
| MTK | MTK 6739 |
| OS | Android 7.1 |
| Network | GSM:2G:GSM B2/B3/B5/B8 3G:TD-SCDMA B34/B39 WCDMA B1/B2/B5/B8 TDS: B34/B39 4G:TDD-LTE: B38/B39/B40/B41 FDD-LTE B1/B2/B3/B4/B5/B7/B8/B17/B20 FDD LTE 1：BAND 1/2/3/4/5/7/17/28(A+B) FDD-LTE 2：BAND 1/2/3/4/5/7/8/17/20 |
| Memory | 1GB+8GB |
| Front camera | 2MP |
| Rear camera | 5MP |
| Bluetooth | V4.0 |
| Wifi | 2.5G/5G |
| Positioning | GPS / BEIDOU |
Copyright ©2025 Shenzhen Grandtime Technology Co., Ltd. All Rights Reserved Copyright
At Grandtime, we protect those who protect others — and those who build our world. We engineer mission-critical safety devices include body-worn cameras for public safety professionals and smart helmets for industrial workers,delivering real-time awareness, secure connectivity, and unwavering reliability in the field.
Copyright ©2025 Shenzhen Grandtime Technology Co., Ltd. All Rights Reserved.