ZTE Grand X Max (Z787) vs LG K31 Rebel (L355DL)
Side by side comparison between ZTE Grand X Max vs LG K31 phones, differences, pros, cons and full specifications. What's the better?
,
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? LG K31 Rebel (L355DL)
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!
6 Advantages 
20 Advantages | 20 Common items in both devices |
| Plastic body, glass front |
| 60Hz |
| 16 million |
| LED flash |
| Only digital zoom |
| Autofocus / PDAF: phase detection autofocus |
| EIS: Digital stabilization |
| +13 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 Grand X Max (Z787) | LG K31 Rebel (L355DL) | |
| Change model | ||
| Model | Grand X Max (Z787) | K31 Rebel (L355DL) |
| Other model names | Cricket ZTE Grand Xmax Z787, ZTE Z787 | LG K31 Rebel (TracFone), LGL355DLATRFTNY, LGL355DL |
| Country or region available |  (Global, International) |  USA |
| Brand | ZTE | LG |
| Release date | 10/1/2014 | 8/21/2020 |
| Depth | 7.9 millimeters (0.31 inches) | 8.6 millimeters (0.34 inches) |
| Size (width x height) | 83.1 x 162.1 millimeters (3.27 x 6.38 in) | 71.12 x 147.83 millimeters (2.8 x 5.82 in) |
| Weight | 172 grams (6.02 ounces) | 146 grams (5.11 ounces) |
| Build, materials | Plastic body, glass front | 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 Grand X Max (Z787) | LG K31 Rebel (L355DL) | |
| Display type | TFT LCD | TFT IPS LCD |
| Screen size | 6" inches | 5.7" inches |
| Screen-to-body ratio | ~73.7% (screen-to-body ratio) | ~77.1% (screen-to-body ratio) |
| Display resolution | 720x1280 pixels | 720x1520 pixels (19:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 245 PPI | 295 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 3 | Panda King Glass |
| Refresh rate | 60Hz | 60Hz |
| Display features | Not supported | Not supported |
🤖 Operating System | ||
| ZTE Grand X Max (Z787) | LG K31 Rebel (L355DL) | |
| System version | Android 4.4.2 KitKat | Android 10 |
| Firmware update | feature not registered | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| ZTE Grand X Max (Z787) | LG K31 Rebel (L355DL) | |
| Chipset | 32bit: Qualcomm Snapdragon 200 (MSM8212) (28nm) | 64bit: MediaTek Helio P22 (MT6762) (12nm) |
| CPU | Quad-core, 1 processor: 4x 1.2GHz ARM Cortex-A7 (Quad-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 302 (400MHz) | PowerVR GE8320 (650MHz) |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| ZTE Grand X Max (Z787) | LG K31 Rebel (L355DL) | |
| RAM memory | 1GB LPDDR2 | 2GB LPDDR3 |
| Internal storage | 8GB (4GB available) eMMC 4.5 | 32GB (18GB available) eMMC 5.1 |
| External storage | Until 32GB microSD, microSDHC (dedicated slot) | Until 512GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| ZTE Grand X Max (Z787) | LG K31 Rebel (L355DL) | |
| Dual-SIM | Not supported | Not supported |
| SIM card | 1 slot (Single-SIM) micro-SIM (3FF) | 1 slot (Single-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 21/5.76 Mbps | 150/50 Mbps |
| Network technology | 2G, 3G | 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 850/1900/2100 | CDMA2000 1xEV-DO UMTS 850/900/1900/2100 |
| Primary 4G network | Not supported | 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+ | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE |
| Secondary 2G network | Not supported | Not supported |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | Not supported | Not supported |
📷 Camera | ||
| ZTE Grand X Max (Z787) | LG K31 Rebel (L355DL) | |
| Back camera (main camera) | 8 megapixels | (dual camera) 13 megapixels 5MP ultrawide f/2.2120°1/5.0"1.12µm |
| Main camera resolution | 3264x2448 pixels | 4128x3096 pixels |
| Video recording (primary) | HD (1280x720) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | LED flash | 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 | 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 Grand X Max (Z787) | LG K31 Rebel (L355DL) | |
| Front camera (secondary) | 1 megapixels | 5 megapixels |
| Front camera resolution | 1280x720 pixels | 2560x1920 pixels |
| Video recording (secondary) | HD (1280x720) | Full HD (1920x1080) |
| Front flash | Not supported | 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 Grand X Max (Z787) | LG K31 Rebel (L355DL) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | 2 microphones | 2 microphones or more |
| Radio | Not supported | 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, eAAC+ | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| ZTE Grand X Max (Z787) | LG K31 Rebel (L355DL) | |
| USB | MicroUSB 2.0 | MicroUSB 2.0 |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 4.0 + A2DP | 5.0 + A2DP/LE |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) WiFi hotspot | 802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot |
| DLNA | Not supported | Not supported |
| GPS | A-GPS, GeoTagging | A-GPS, GeoTagging |
| NFC | Not supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| ZTE Grand X Max (Z787) | LG K31 Rebel (L355DL) | |
| Sensors | Accelerometer Ambient light sensor Proximity sensor | Accelerometer Fingerprint sensor (rear-mounted) |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| ZTE Grand X Max (Z787) | LG K31 Rebel (L355DL) | |
| Battery type | Li-Ion: lithium-ion (Removable) | Li-Ion: lithium-ion (Non removable) |
| Battery capacity | 3200 mAh | 3000 mAh |
| Charger, watts | Wired charging Quick Charge | Wired charging |
| Inductive / wireless charging | Not supported | Not supported |
| Talk time autonomy | 7 hours | 11 hours |
| Standby | 860 hours (35.8 days) | 528 hours (22 days) |
➕ Other features | ||
| ZTE Grand X Max (Z787) | LG K31 Rebel (L355DL) | |
| Call control | Voice dialing, Voice recorder | 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 • Java framework | • Colors: Silver • LG UX 9.1 |
☢️ Radiation rate | ||
| ZTE Grand X Max (Z787) | 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 |