ZTE Blade V8 Pro (Z978) vs LG K31 Rebel (L355DL)
Side by side comparison between ZTE Blade V8 Pro vs LG K31 phones, differences, pros, cons and full specifications. What's the better?
,
5.5"
IPS
IPS
1080x1920
13
MP
MP
8mp
3GB
RAM
RAM
Octa-core
3140
mAh
mAh
(Non removable)
vs
5.7"
IPS
IPS
720x1520
13
MP
MP
5mp
2GB
RAM
RAM
Octa-core
3000
mAh
mAh
(Non removable)
What's the better phone? ZTE Blade V8 Pro (Z978)
The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!
19 Advantages 
8 Advantages | 22 Common items in both devices |
| TFT IPS LCD |
| 16 million |
| Only digital zoom |
| PDAF: phase detection autofocus |
| EIS: Digital stabilization |
| (front) Full HD (1920x1080) |
| 4G LTE |
| +15 specs and more in the table below |
Check the comparison table below for more items that are not evaluated in comparison score above.
Highlight differences Clear highlight📱 Model features | ||
| ZTE Blade V8 Pro (Z978) | LG K31 Rebel (L355DL) | |
| Change model | ||
| Model | Blade V8 Pro (Z978) | K31 Rebel (L355DL) |
| Other model names | ZTE Blade V8 Pro Z978, ZTE BV8P121 | LG K31 Rebel (TracFone), LGL355DLATRFTNY, LGL355DL |
| Country or region available |  USA | USA |
| Brand | ZTE | LG |
| Release date | 1/1/2017 | 8/21/2020 |
| Depth | 9.1 millimeters (0.36 inches) | 8.6 millimeters (0.34 inches) |
| Size (width x height) | 77 x 156 millimeters (3.03 x 6.14 in) | 71.12 x 147.83 millimeters (2.8 x 5.82 in) |
| Weight | 185 grams (6.48 ounces) | 146 grams (5.11 ounces) |
| Build, materials | feature not registered | Plastic body, glass front |
| Protection against water and others | Not supported | MIL-STD-810G military certified: salt, dust, humidity, rain, vibration, solar radiation, transport and thermal shock resistant. |
📲 Display | ||
| ZTE Blade V8 Pro (Z978) | LG K31 Rebel (L355DL) | |
| Display type | TFT IPS LCD | TFT IPS LCD |
| Screen size | 5.5" inches | 5.7" inches |
| Screen-to-body ratio | ~69.4% (screen-to-body ratio) | ~77.1% (screen-to-body ratio) |
| Display resolution | 1080x1920 pixels | 720x1520 pixels (19:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 401 PPI | 295 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 3 | Panda King Glass |
| Refresh rate | feature not registered | 60Hz |
| Display features | feature not registered | Not supported |
🤖 Operating System | ||
| ZTE Blade V8 Pro (Z978) | LG K31 Rebel (L355DL) | |
| System version | Android 6.0.1 Marshmallow | Android 10 |
| Firmware update | feature not registered | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| ZTE Blade V8 Pro (Z978) | LG K31 Rebel (L355DL) | |
| Chipset | 64bit: Qualcomm Snapdragon 625 MSM8953 (14nm) | 64bit: MediaTek Helio P22 (MT6762) (12nm) |
| CPU | Octa-core, 1 processor: 8x 2GHz ARM Cortex-A53 (Octa-core) | Octa-core, 2 processors: 4x 2GHz ARM Cortex-A53 (Quad-core) 4x 1.5GHz ARM Cortex-A53 (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 506 650Mhz | PowerVR GE8320 (650MHz) |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| ZTE Blade V8 Pro (Z978) | LG K31 Rebel (L355DL) | |
| RAM memory | 3GB LPDDR3 | 2GB LPDDR3 |
| Internal storage | 32GB (22GB available) | 32GB (18GB available) eMMC 5.1 |
| External storage | Until 256GB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot) | Until 512GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| ZTE Blade V8 Pro (Z978) | LG K31 Rebel (L355DL) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot) | Not supported |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 1 slot (Single-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 150/50 Mbps | 150/50 Mbps |
| Network technology | 2G, 3G, 4G | 2G, 3G, 4G |
| Frequency, bands | Expand band details Collapse details | |
| GSM MHz band | Quad-Band 850/900/1800/1900 | Quad-Band 850/900/1800/1900 |
| Primary 2G network | GSM 850/900/1800/1900 | CDMA 800/1900, GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 850/900/1700/2100 | CDMA2000 1xEV-DO UMTS 850/900/1900/2100 |
| Primary 4G network | LTE Cat4 700/850/1700/1900/2600 (Bands 2,4,5,7,12) | LTE Cat4 (2, 4, 5, 12, 13, 25, 26, 66, 71) TD-LTE (41) |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE |
| Secondary 2G network | GSM 850/900/1800/1900 | Not supported |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | GPRS, EDGE | Not supported |
📷 Camera | ||
| ZTE Blade V8 Pro (Z978) | LG K31 Rebel (L355DL) | |
| Back camera (main camera) | (dual camera) 13 megapixels 13MP | (dual camera) 13 megapixels 5MP ultrawide f/2.2120°1/5.0"1.12µm |
| Main camera resolution | 4128x3096 pixels | 4128x3096 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | Dual-LED on main camera and LED on front camera | LED flash |
| Focal aperture | feature not registered | f/1.8 (aperture) |
| Focal length | feature not registered | 27mm (lens) |
| Sensor size | feature not registered | 1/3.1" inches |
| Pixel size | feature not registered | 1.12µm pixel |
| Autofocus | PDAF: phase detection autofocus | PDAF: phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | EIS: Digital stabilization | EIS: Digital stabilization |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Not supported | Not supported |
| HDR | HDR photo only main camera | HDR photo on both cameras |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| ZTE Blade V8 Pro (Z978) | LG K31 Rebel (L355DL) | |
| Front camera (secondary) | 8 megapixels | 5 megapixels |
| Front camera resolution | 3264x2448 pixels | 2560x1920 pixels |
| Video recording (secondary) | Full HD (1920x1080) | Full HD (1920x1080) |
| Front flash | LED | Not supported |
| Focal aperture | feature not registered | f/2.2 (aperture) |
| Focal length | feature not registered | 24mm (lens) |
| Sensor size | feature not registered | 1/5" inches |
| Pixel size | feature not registered | 1.12µm pixel |
🔉 Sound and multimedia | ||
| ZTE Blade V8 Pro (Z978) | LG K31 Rebel (L355DL) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | FM | Not supported |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263 | MP4, H.265, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, OGG, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| ZTE Blade V8 Pro (Z978) | LG K31 Rebel (L355DL) | |
| USB | USB 2.0 Type-C reversible connector | MicroUSB 2.0 |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 4.2 + A2DP | 5.0 + A2DP/LE |
| WiFi | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot | 802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot |
| DLNA | Not supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS | A-GPS, GeoTagging |
| NFC | Supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| ZTE Blade V8 Pro (Z978) | LG K31 Rebel (L355DL) | |
| Sensors | Accelerometer Ambient light sensor Compass Fingerprint sensor Gyroscope Hall effect Proximity sensor | Accelerometer Fingerprint sensor (rear-mounted) |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| ZTE Blade V8 Pro (Z978) | LG K31 Rebel (L355DL) | |
| Battery type | LiPo: li-ion polymer (Non removable) | Li-Ion: lithium-ion (Non removable) |
| Battery capacity | 3140 mAh | 3000 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | feature not registered | Not supported |
| Talk time autonomy | 24 hours (1 day) | 11 hours |
| Standby | 552 hours (23 days) | 528 hours (22 days) |
➕ Other features | ||
| ZTE Blade V8 Pro (Z978) | LG K31 Rebel (L355DL) | |
| Call control | Voice dialing, Voice recorder, Voice commands | Voice dialing, Voice recorder, Voice commands |
| Messaging | SMS (T9), MMS, E-mail, Push mail | SMS (T9), MMS, E-mail, Push mail |
| Hands-free calling | Supported | Supported |
| Video calling | Supported | Supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | HTML, XHTML, HTML5 | HTML, XHTML, HTML5 |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Black Diamond • USB On-The-Go • 2.5D curved edge screen • Metal frame • Plastic back case • MiFavor UI • 24-bit/192kHz audio • Dolby audio sound enhancement • Fast battery charging • Quick Charge 2.0 • HAC M3/T4 | • Colors: Silver • LG UX 9.1 |
☢️ Radiation rate | ||
| ZTE Blade V8 Pro (Z978) | LG K31 Rebel (L355DL) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | 0.61W/kg (head), 1.13W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |