LG K8 2017 (X240YK) vs LG K31 Rebel (L355DL)
Side by side comparison between LG K8 (2017) vs LG K31 phones, differences, pros, cons and full specifications. What's the better?
,
5"
IPS
IPS
720x1280
13
MP
MP
5mp
1.5GB
RAM
RAM
Quad-core
2500
mAh
mAh
(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? 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 
19 Advantages | 19 Common items in both devices |
| Plastic body, glass front |
| TFT IPS LCD |
| 16 million |
| LED flash |
| Only digital zoom |
| Autofocus / PDAF: phase detection autofocus |
| EIS: Digital stabilization |
| +12 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 | ||
| LG K8 2017 (X240YK) | LG K31 Rebel (L355DL) | |
| Model | LG K8 2017 (X240YK) | K31 Rebel (L355DL) |
| Other model names | LG K8 2017 Single-Sim, LGX240YK, LG-X240YK, LG PP2 | LG K31 Rebel (TracFone), LGL355DLATRFTNY, LGL355DL |
| Country or region available |   Australia, New Zealand |  USA |
| Brand | LG | LG |
| Release date | 3/1/2017 | 8/21/2020 |
| Depth | 8.25 millimeters (0.32 inches) | 8.6 millimeters (0.34 inches) |
| Size (width x height) | 73.2 x 147.15 millimeters (2.88 x 5.79 in) | 71.12 x 147.83 millimeters (2.8 x 5.82 in) |
| Weight | 148 grams (5.18 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 | ||
| LG K8 2017 (X240YK) | LG K31 Rebel (L355DL) | |
| Display type | TFT IPS LCD | TFT IPS LCD |
| Screen size | 5" inches | 5.7" inches |
| Screen-to-body ratio | ~64% (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) | 294 PPI | 295 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Not supported | Panda King Glass |
| Refresh rate | feature not registered | 60Hz |
| Display features | feature not registered | Not supported |
🤖 Operating System | ||
| LG K8 2017 (X240YK) | LG K31 Rebel (L355DL) | |
| System version | Android 6.0 Marshmallow | Android 10 |
| Firmware update | feature not registered | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| LG K8 2017 (X240YK) | LG K31 Rebel (L355DL) | |
| Chipset | 64bit: MediaTek MT6737 (28nm) | 64bit: MediaTek Helio P22 (MT6762) (12nm) |
| CPU | Quad-core, 1 processor: 4x 1.25GHz ARM Cortex-A53 (Quad-core) | Octa-core, 2 processors: 4x 2GHz ARM Cortex-A53 (Quad-core) 4x 1.5GHz ARM Cortex-A53 (Quad-core) |
| GPU graphical controller | ARM Mali-T720 MP2 550Mhz | PowerVR GE8320 (650MHz) |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| LG K8 2017 (X240YK) | LG K31 Rebel (L355DL) | |
| RAM memory | 1.5GB LPDDR3 | 2GB LPDDR3 |
| Internal storage | 16GB (9GB available) eMMC 5.0 | 32GB (18GB available) eMMC 5.1 |
| External storage | Until 32GB microSD, microSDXC (dedicated slot) | Until 512GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| LG K8 2017 (X240YK) | LG K31 Rebel (L355DL) | |
| Dual-SIM | Not supported | Not supported |
| SIM card | 1 slot (Single-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 850/900/2100 | CDMA2000 1xEV-DO UMTS 850/900/1900/2100 |
| Primary 4G network | LTE Cat4 (Bands 1, 3, 5, 7, 8, 28) | 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 | 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 | ||
| LG K8 2017 (X240YK) | LG K31 Rebel (L355DL) | |
| Back camera (main camera) | 13 megapixels | (dual camera) 13 megapixels 5MP ultrawide f/2.2120°1/5.0"1.12µm |
| Main camera resolution | 4128x3096 pixels | 4128x3096 pixels |
| Video recording (primary) | Full HD (1920x1080) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/2.2 (aperture) | f/1.8 (aperture) |
| Focal length | feature not registered | 27mm lens |
| Sensor size | 1/3" inches | 1/3.1" inches |
| Pixel size | 1.12µm pixel | 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 | ||
| LG K8 2017 (X240YK) | LG K31 Rebel (L355DL) | |
| Front camera (secondary) | 5 megapixels | 5 megapixels |
| Front camera resolution | 2560x1920 pixels | 2560x1920 pixels |
| Video recording (secondary) | HD (1280x720) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.4 (aperture) | f/2.2 (aperture) |
| Focal length | feature not registered | 24mm lens |
| Sensor size | 1/5" inches | 1/5" inches |
| Pixel size | 1.12µm pixel | 1.12µm pixel |
🔉 Sound and multimedia | ||
| LG K8 2017 (X240YK) | LG K31 Rebel (L355DL) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | Not supported | 2 microphones or more |
| Radio | FM (RDS) | Not supported |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, MKV | MP4, H.265, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, OGG, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| LG K8 2017 (X240YK) | LG K31 Rebel (L355DL) | |
| USB | MicroUSB 2.0, USB OTG On-The-Go | MicroUSB 2.0 |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 4.1 + A2DP | 5.0 + A2DP/LE |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, 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 | ||
| LG K8 2017 (X240YK) | LG K31 Rebel (L355DL) | |
| Sensors | Accelerometer Ambient light sensor Proximity sensor | Accelerometer Fingerprint sensor (rear-mounted) |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| LG K8 2017 (X240YK) | LG K31 Rebel (L355DL) | |
| Battery type | Li-Ion: lithium-ion (Removable) | Li-Ion: lithium-ion (Non removable) |
| Battery capacity | 2500 mAh | 3000 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | feature not registered | Not supported |
| Talk time autonomy | 3.2 hours | 11 hours |
| Standby | 310 hours (12.9 days) | 528 hours (22 days) |
➕ Other features | ||
| LG K8 2017 (X240YK) | 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: Indigo, Gold • 2.5D glass screen • Quick Selfie | • Colors: Silver • LG UX 9.1 |
☢️ Radiation rate | ||
| LG K8 2017 (X240YK) | 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 |