| Local Name | T21 |
| Technology | GSM / HSPA |
| 3G Bands | HSDPA 900 / 2100 |
| 2G Bands | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| Speed | HSPA |
| GPRS | Yes |
| EDGE | Yes |
| Announced | 2013, Q3 |
| Status | Available. Released 2013, Q3 |
| Dimensions | 132 x 66 x 9.8 mm (5.20 x 2.60 x 0.39 in) |
| Weight | 140 g (4.94 oz) |
| SIM | Dual SIM |
| Display Type | IPS LCD capacitive touchscreen, 16M colors |
| Screen Size | 4.5 inches (~64.1% screen-to-body ratio) |
| Resolution | 720 x 1280 pixels (~326 ppi pixel density) |
| Mulitouch | Yes |
| OS | Android OS, v4.1 (Jelly Bean) |
| CPU | Dual-core 1.2 GHz |
| Card Slot | microSD, up to 32 GB (dedicated slot) |
| Internal Memory | 4 GB, 1 GB RAM |
| Primary Camera | 8 MP, autofocus, LED flash |
| Camera Features | Geo-tagging, touch focus, face detection |
| Video | 1080p@30fps |
| Secondary Camera | 2 MP |
| Alert Types | Vibration; MP3, WAV ringtones |
| Loudspeaker | Yes |
| 3.5mm Jack | Yes |
| WLAN | Wi-Fi 802.11 b/g/n, hotspot |
| Bluetooth | v2.1, A2DP |
| GPS | Yes, with A-GPS |
| Radio | FM radio |
| USB | microUSB v2.0 |
| Sensors | Accelerometer, proximity, compass |
| Messaging | SMS(threaded view), MMS, Email, Push Mail, IM |
| Browser | HTML5 |
| Java | No |
| Features Summary | Active noise cancellation with dedicated mic, DivX/MP4/H.264 player, MP3/WAV/eAAC+ player, Photo/video editor, Document viewer, Voice memo/dial |
| Battery | Removable Li-Ion 1700 mAh battery |
| Colors | Black, White |
