| OS |
Android 7.0 (Nougat), Vertex OS with Dual SIM 3G setups |
| Chipset |
MediaTek MT6580M (28 nm 1.3GHz Quad-Core Cortex-A7 & ARM Mali-400 MP2 GPU @ 500MHz with 720p Hardware Video Decoder) |
| RAM |
1GB High-Speed LPDDR3 RAM |
| Storage |
8GB Massive Internal Storage (5.2GB User Accessible) |
| Display |
5.0 inches • 480 x 854 pixels (16:9, 196 ppi IPS) |
| Main camera |
5.0 MP Main (Autofocus, LED flash, 720p@30fps video) |
| Selfie camera |
2.0 MP (720p HD video for Video Calling) |
| Battery |
2000 mAh User-Replaceable / Removable Battery (Powers over 12 hours calling / 360 hours standby!), Micro-USB 2.0 charging • Removable Li-Po 2000 mAh (7.6 Wh) |
| Weight |
140 g (4.94 oz) |
Latest Vertex Impress Calypso user agents:
| User Agent |
Browser | Platform |
| Mozilla/5.0 (Linux; arm_64; Android 7.0; Impress_Calypso) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.138 YaBrowser/20.4.5.63.00 SA/1 Mobile Safari/537.36 |
Yandex Browser 20 | Android 7Impress Calypso |
| Mozilla/5.0 (Linux; Android 7.0; Impress_Calypso) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.104 Mobile Safari/537.36 |
Chrome Mobile 96 | Android 7Impress Calypso |
| Mozilla/5.0 (Linux; Android 7.0; Impress_Calypso) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.101 Mobile Safari/537.36 |
Chrome Mobile 87 | Android 7Impress Calypso |
| Mozilla/5.0 (Linux; Android 7.0; Impress_Calypso) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.81 Mobile Safari/537.36 |
Chrome Mobile 85 | Android 7Impress Calypso |
| Mozilla/5.0 (Linux; Android 7.0; Impress_Calypso) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4147.125 Mobile Safari/537.36 |
Chrome Mobile 84 | Android 7Impress Calypso |
| Mozilla/5.0 (Linux; Android 7.0; Impress_Calypso) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.101 Mobile Safari/537.36 |
Chrome Mobile 75 | Android 7Impress Calypso |
| Mozilla/5.0 (Linux; Android 7.0; Impress_Calypso Build/XING29N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.106 Mobile Safari/537.36 |
Chrome Mobile 83 | Android 7Impress Calypso |
| Mozilla/5.0 (Linux; Android 7.0; Impress_Calypso Build/XING29N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Mobile Safari/537.36 |
Chrome Mobile 69 | Android 7Impress Calypso |
| Mozilla/5.0 (Linux; Android 7.0; Impress_Calypso Build/XING29N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Mobile Safari/537.36 |
Chrome Mobile 67 | Android 7Impress Calypso |
| Mozilla/5.0 (Linux; Android 7.0; Impress_Calypso Build/XING29N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.109 Mobile Safari/537.36 |
Chrome Mobile 65 | Android 7Impress Calypso |
| Mozilla/5.0 (Linux; Android 7.0; Impress_Calypso Build/XING29N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.186 YaBrowser/18.3.1.651.00 Mobile Safari/537.36 |
Yandex Browser 18 | Android 7Impress Calypso |