| Local Name | Blade X3 |
| Additional Information | Also known as ZTE Blade D2, Blade T620 |
| Technology | GSM / HSPA / LTE |
| 4G Bands | LTE band 1(2100), 3(1800), 7(2600), 40(2300) |
| 3G Bands | HSDPA 850 / 900 / 2100 |
| 2G Bands | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| Speed | HSPA, LTE |
| GPRS | Yes |
| EDGE | Yes |
| Announced | 2015, November |
| Status | Available. Released 2015, November |
| Dimensions | 145 x 71.5 x 8.9 mm (5.71 x 2.81 x 0.35 in) |
| Weight | 160.9 g (5.68 oz) |
| SIM | Dual SIM (Micro-SIM, dual stand-by) |
| Display Type | IPS LCD capacitive touchscreen, 16M colors |
| Screen Size | 5.0 inches (~66.5% screen-to-body ratio) |
| Resolution | 720 x 1280 pixels (~294 ppi pixel density) |
| Mulitouch | Yes |
| OS | Android 5.1 (Lollipop) |
| Chipset | Mediatek MT6735P |
| CPU | Quad-core 1.0 GHz Cortex-A53 |
| GPU | Mali-T720MP2 |
| Card Slot | microSD, up to 64 GB (dedicated slot) |
| Internal Memory | 8 GB, 1 GB RAM |
| Primary Camera | 8 MP, autofocus, LED flash |
| Camera Features | Geo-tagging, touch focus, face detection, panorama |
| Video | 1080p@30fps |
| Secondary Camera | 5 MP or 2 MP |
| Alert Types | Vibration; MP3, WAV ringtones |
| Loudspeaker | Yes |
| 3.5mm Jack | Yes |
| WLAN | Wi-Fi 802.11 b/g/n, hotspot |
| Bluetooth | 4.0, A2DP |
| GPS | Yes, with A-GPS |
| Radio | FM radio |
| USB | microUSB 2.0 |
| Sensors | Accelerometer, proximity |
| Messaging | SMS(threaded view), MMS, Email, Push Email, IM |
| Browser | HTML5 |
| Java | No |
| Features Summary | MP4/H.264 player, MP3/WAV/eAAC+ player, Document viewer, Photo/video editor |
| Battery | Removable Li-Ion 4000 mAh battery |
| Colors | Various |