| Local Name | Classic C21A |
| Technology | GSM |
| 2G Bands | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 - CM21A003 |
| GPRS | Up to 48 kbps |
| EDGE | No |
| Announced | 2013, March. Released 2013, April |
| Status | Discontinued |
| Dimensions | 106 x 45 x 14.5 mm (4.17 x 1.77 x 0.57 in) |
| Weight | 73 g without battery (2.57 oz) |
| SIM | Dual SIM (Mini-SIM) |
| Display Type | TFT, 256K colors |
| Screen Size | 1.8 inches, 10.2 cm2 (~21.4% screen-to-body ratio) |
| Resolution | 128 x 160 pixels (~114 ppi density) |
| Card Slot | microSD, up to 32 GB |
| Phone Book | Yes |
| Call Records | Yes |
| Internal Memory | 32 Mbit + 32 Mbit |
| Video | No |
| Alert Types | Vibration, Polyphonic |
| Loudspeaker | Yes |
| 3.5mm Jack | No |
| WLAN | No |
| Bluetooth | 2.0 |
| GPS | No |
| Radio | Stereo FM radio |
| USB | microUSB |
| Messaging | SMS, IM |
| Browser | WAP |
| Games | No |
| Java | No |
| Features Summary | Video Player, Music Player, Organizer, Whatsapp |
| Battery | Removable Li-Ion 600 mAh battery |
| Stand By | Up to 200 h |
| Talk Time | Up to 4 h |
| Colors | Black, White, Blue, Green, Purple, Red, Fuchsia |