LG K31 Rebel (L355DL) vs Sony Ericsson Vivaz (U5a)
Side by side comparison between LG K31 vs Sony Ericsson Vivaz phones, differences, pros, cons and full specifications. What's the better?
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5.7"
IPS
IPS
720x1520
13
MP
MP
5mp
2GB
RAM
RAM
Octa-core
3000
mAh
mAh
(Non removable)
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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!
26 Advantages 
5 Advantages | 11 Common items in both devices |
| 16 million |
| LED flash |
| Only digital zoom |
| PDAF: phase detection autofocus / Autofocus |
| Accelerometer |
| Hands-free calling |
| Video calling |
| +4 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 K31 Rebel (L355DL) | Sony Ericsson Vivaz (U5a) | |
| Model | K31 Rebel (L355DL) | Vivaz (U5a) |
| Other model names | LG K31 Rebel (TracFone), LGL355DLATRFTNY, LGL355DL | Sony Ericsson Vivaz U5A, SE Kurara |
| Country or region available |  USA |   (Latin America), Canada, USA |
| Brand | LG | Sony Ericsson |
| Release date | 8/21/2020 | 3/4/2010 |
| Depth | 8.6 millimeters (0.34 inches) | 12.5 millimeters (0.49 inches) |
| Size (width x height) | 71.12 x 147.83 millimeters (2.8 x 5.82 in) | 51.7 x 107 millimeters (2.04 x 4.21 in) |
| Weight | 146 grams (5.11 ounces) | 97 grams (3.4 ounces) |
| Build, materials | Plastic body, glass front | feature not registered |
| Protection against water and others | MIL-STD-810G military certified: salt, dust, humidity, rain, vibration, solar radiation, transport and thermal shock resistant. | Not supported |
📲 Display | ||
| LG K31 Rebel (L355DL) | Sony Ericsson Vivaz (U5a) | |
| Display type | TFT IPS LCD | TFT LCD |
| Screen size | 5.7" inches | 3.2" inches |
| Screen-to-body ratio | ~77.1% (screen-to-body ratio) | ~51% (screen-to-body ratio) |
| Display resolution | 720x1520 pixels (19:9) | 360x640 pixels |
| Touchscreen | Capacitive Multitouch | Resistive Single touch 1-point |
| Pixel density (dot pitch) | 295 PPI | 229 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Panda King Glass | Not supported |
| Refresh rate | 60Hz | feature not registered |
| Display features | Not supported | feature not registered |
🤖 Operating System | ||
| LG K31 Rebel (L355DL) | Sony Ericsson Vivaz (U5a) | |
| System version | Android 10 | Symbian 9.4 S60 5th Edition Symbian^1 |
| Firmware update | feature not registered | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| LG K31 Rebel (L355DL) | Sony Ericsson Vivaz (U5a) | |
| Chipset | 64bit: MediaTek Helio P22 (MT6762) (12nm) | 32bit |
| CPU | Octa-core, 2 processors: 4x 2GHz ARM Cortex-A53 (Quad-core) 4x 1.5GHz ARM Cortex-A53 (Quad-core) | Single-core, 1 processor: 1x 720MHz ARM Cortex-A8 (Single-core) |
| GPU graphical controller | PowerVR GE8320 (650MHz) | PowerVR SGX530 |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| LG K31 Rebel (L355DL) | Sony Ericsson Vivaz (U5a) | |
| RAM memory | 2GB LPDDR3 | 256MB SDRAM |
| Internal storage | 32GB (18GB available) eMMC 5.1 | 512MB (75MB available) |
| External storage | Until 512GB microSD, microSDXC (dedicated slot) | Until 32GB microSD, microSDHC (dedicated slot) |
📶 Mobile networks | ||
| LG K31 Rebel (L355DL) | Sony Ericsson Vivaz (U5a) | |
| Dual-SIM | Not supported | Not supported |
| SIM card | 1 slot (Single-SIM) nano-SIM (4FF) | 1 slot (Single-SIM) Standard mini-SIM (2FF) |
| Maximum Download / Upload | 150/50 Mbps | 10.2/2 Mbps |
| Network technology | 2G, 3G, 4G | 2G, 3G |
| 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 | CDMA 800/1900, GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | CDMA2000 1xEV-DO UMTS 850/900/1900/2100 | UMTS 850/1900/2100 |
| Primary 4G network | LTE Cat4 (2, 4, 5, 12, 13, 25, 26, 66, 71) TD-LTE (41) | Not supported |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE | CSD, GPRS, EDGE, UMTS, HSDPA, HSUPA |
| 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 K31 Rebel (L355DL) | Sony Ericsson Vivaz (U5a) | |
| Back camera (main camera) | (dual camera) 13 megapixels 5MP ultrawide f/2.2120°1/5.0"1.12µm | 8 megapixels |
| Main camera resolution | 4128x3096 pixels | 3264x2448 pixels |
| Video recording (primary) | Full HD (1920x1080) 30 fps | HD (1280x720) 24 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/1.8 (aperture) | feature not registered |
| Focal length | 27mm (lens) | feature not registered |
| Sensor size | 1/3.1" inches | feature not registered |
| Pixel size | 1.12µm pixel | feature not registered |
| Autofocus | PDAF: phase detection autofocus | Autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | EIS: Digital stabilization | feature not registered |
| 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 on both cameras | Not supported |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| LG K31 Rebel (L355DL) | Sony Ericsson Vivaz (U5a) | |
| Front camera (secondary) | 5 megapixels | Not supported |
| Front camera resolution | 2560x1920 pixels | Not supported |
| Video recording (secondary) | Full HD (1920x1080) | Not supported |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.2 (aperture) | feature not registered |
| Focal length | 24mm (lens) | feature not registered |
| Sensor size | 1/5" inches | feature not registered |
| Pixel size | 1.12µm pixel | feature not registered |
🔉 Sound and multimedia | ||
| LG K31 Rebel (L355DL) | Sony Ericsson Vivaz (U5a) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | 2 microphones or more | Not supported |
| Radio | Not supported | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD, MKV | MP4, WMV, 3GP, RV |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WMA, WAV, RA, AAC, M4A |
🔌 Connectivity | ||
| LG K31 Rebel (L355DL) | Sony Ericsson Vivaz (U5a) | |
| USB | MicroUSB 2.0 | MicroUSB 2.0 |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Proprietary TV-out |
| Bluetooth | 5.0 + A2DP/LE | 2.1 + A2DP |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot | 802.11 b/g [wifi3] (2.4GHz) |
| DLNA | Not supported | Supported |
| GPS | A-GPS, GeoTagging | A-GPS, GeoTagging |
| NFC | Not supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| LG K31 Rebel (L355DL) | Sony Ericsson Vivaz (U5a) | |
| Sensors | Accelerometer Fingerprint sensor (rear-mounted) | Accelerometer Ambient light sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| LG K31 Rebel (L355DL) | Sony Ericsson Vivaz (U5a) | |
| Battery type | Li-Ion: lithium-ion (Non removable) | LiPo: li-ion polymer (Removable) EP500 |
| Battery capacity | 3000 mAh | 1200 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | Not supported | feature not registered |
| Talk time autonomy | 11 hours | 5.3 hours |
| Standby | 528 hours (22 days) | 440 hours (18.3 days) |
➕ Other features | ||
| LG K31 Rebel (L355DL) | Sony Ericsson Vivaz (U5a) | |
| Call control | Voice dialing, Voice recorder, Voice commands | Voice recorder |
| 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 | WAP, HTML, Flash player |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Silver • LG UX 9.1 | • Colors: Black, Blue, Red, Gray, Light pink • 8GB microSD included • 3D stereo sound • Continuous autofocus • Touch capture • WisePilot navigation • Java framework |
☢️ Radiation rate | ||
| LG K31 Rebel (L355DL) | Sony Ericsson Vivaz (U5a) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | 0.61W/kg (head), 1.13W/kg (body) | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |