ZTE E798 vs Allview V4 Viper
| Type | Clamshell | Touch |
| Dimensions | 85.00 x 45.00 x 23.00 mm | 145.80 x 70.90 x 8.50 mm |
| Weight | 90.00 g | 138.00 g |
| Display size | - | 5.70" |
| Display | Color / FSTN 64k colors 128 x 160 px | Color / IPS TFT 16M colors 720 x 1520 px (5.70") 295 ppi |
| Display protection |   | |
| Additional display | Mono / OLED | |
| Protection of the secondary display | | |
| Talk time (max.) | 2G: 240 min. (4.0 h) | 2G: 800 min. (13.3 h) |
| Stand-by (max.) | 2G: 120 h. (5.0 days) | 2G: 270 h. (11.3 days) |
| Standard battery | Li-Ion 780 mAhBuy powerbank
| Li-Po 2700 mAhBuy powerbank
|
| Quick battery charging | | |
| Wireless battery charging | | |
| Internal memory |  | 16 GB |
| RAM memory | | 2 GB |
| Memory cards | |  microSD, microSDHC, microSDXC up to 128 GBBuy memory card |
| Operating system | - | Android 9.0 Pie |
| Processor | - | MediaTek Helio A22 MT6761 |
| Processor clock | - | 2000 MHz |
| GPU | - | PowerVR GE8300 @660 MHz |
| Touchscreen | | |
| SAR (10g) | | 1,131 W/kg |
| DualSIM | | |
| SIM cards standard | | DualSIM(nanoSIM, nanoSIM) |
| DualSIM mode | nd | dual standby |
| Hybrid DualSIM | nd | nanoSIM, microSD |
| Announced | | 3Q 2019 |
| Other names | - | - |
| GSM frequencies | 900 1800 | 850 900 1800 1900 |
| UMTS | | 900 2100 |
| LTE standard | | FDD LTE: 2600, 2100, 1800, 900, 800 TDD LTE: 2600 |
| Standard 5G | | |
| CDMA | | |
| Standard TD-SCDMA | | |
| UMA | | |
CAMERAS - BACK
| First camera | | |
| Photo matrix | nd | 8 Mpx |
| Optical zoom | nd | |
| Flash | nd | LED |
| Dual-colour LED flash | nd | |
| Video resolution | nd | 1920x1080 px |
| Video formats | nd | H.263, H.264, MPEG4 - 30 fps |
| Additional | nd | AF |
| Second camera | | |
| Photo matrix | nd | 0.3 Mpx |
| Optical zoom | nd | |
| Flash | nd | LED |
| Dual-colour LED flash | nd | |
| Video formats | nd | H.263, H.264, MPEG4 - 30 fps |
| Additional | nd | FF |
CAMERAS - FRONT
| First camera | | |
| Photo matrix | nd | 5 Mpx |
| Optical zoom | nd | |
| Flash | nd | |
| Dual-colour LED flash | nd | |
| Video formats | nd | H.263, H.264, MPEG4 - 30 fps |
| Additional | nd | - |
SENSORS
| Accelerometer | | |
| Proximity | | |
| Light | | |
| Magnetometer | | |
| Gyroscope | | |
| Barometer | | |
| Altimeter | | |
| Gravity | | |
| Hall-effect | | |
| Iris scanner | | |
| Fingerprint scanner | | |
| Thermometer | | |
| Hygrometer | | |
Data transfer
| xHTML | | |
| WAP | v1.2 | v2.0 |
| HSCSD | | |
| HSDPA | | 42.00 Mbit/s |
| HSUPA | | 11.00 Mbit/s |
| HSPA | | |
| HSPA+ | | |
| LTE DL | | 150.00 Mbit/s |
| LTE UP | | 50.00 Mbit/s |
| WIMAX+ | | |
| GPRS | class 8 | class 10 |
| EDGE | | class 10 |
| Bluetooth | | v4.1 |
| A2DP Profile | | |
| HDMI | | |
| WiFi | | v802.11 b/g/n |
| WiFi frequencies | | 2,4 GHz |
| WiFi Direct | | |
| WiFi Display | | |
| DLNA | | |
| Miracast | | |
| WiFi hotspot | | |
| IrDA | | |
| USB | | v2.0 |
| GPS | | |
| A-GPS | | |
| GLONASS | | |
| Beidou | | |
| Galileo | | |
| QZSS | | |
| NFC | | |
COMMUNICATION AND MESSAGING
| Call waiting | | |
| Conferency | | |
| Call forwarding | | |
| Push To Talk | | |
| Instant Messenger | | |
| SMS | | |
| EMS | | |
| MMS | | |
| Dictionary | T9 | XT9 |
| Swype | | |
| e-mail client | | POP3, IMAP4, SMTP |
| Hardware QWERTY keyboard | | |
| RSS Reader | | |
Multimedia
| Radio | | |
| MP3 | | |
| Stereo speakers | | |
| Audio Jack | | 3.5 mm |
| HD Voice | | |
| Sound formats | | AAC, AAC+, AMR, WAV, eAAC+ |
| Polyphony | 40 voices | |
| Video ringtone | | |
| Ring composer | | |
| Games | | |
| Java | | ART |
| Videophone | | |
| DVB-H television | | |
| TV-Out | | |
PIM AND ADDITIONAL FUNCTIONS
| Watch | | |
| Stopwatch | | |
| Alarm | | |
| Calculator | | |
| Currency converter | | |
| Organizer | | |
| Calendar | | |
| Flight mode | | |
| SyncML | | |
| Data and fax | | |
| Screensaver | | |
| Themes | | |
| Interchangeable covers | | |
| Voice dial | | |
| Speakerphone | | |
| Recorder | | |
| Vibrations | | |