LG Optimus F3Q (D520) vs Samsung Rex 70 (S3802)
Side by side comparison between LG Optimus F3Q vs Samsung Rex 70 phones, differences, pros, cons and full specifications. What's the better?
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What's the better phone? LG Optimus F3Q (D520)
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!
20 Advantages 
4 Advantages | 9 Common items in both devices |
| Until 32GB microSD, microSDHC |
| Only digital zoom |
| Capacitive |
| Multitouch |
| Proximity sensor |
| Li-Ion: lithium-ion (Removable) |
| 3.5mm jack |
| +2 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 Optimus F3Q (D520) | Samsung Rex 70 (S3802) | |
| Change model | ||
| Model | Optimus F3Q (D520) | Rex 70 (S3802) |
| Other model names | T-Mobile LG Optimus F3Q 4G LTE, LG FX3, LG D520 | Samsung Rex 70 Duos S3802 for India market |
| Country or region available | feature not registered |  India |
| Brand | LG | Samsung |
| Release date | 1/1/2014 | 3/1/2013 |
| Depth | 14 millimeters (0.55 inches) | 12 millimeters (0.47 inches) |
| Size (width x height) | 64.8 x 121.9 millimeters (2.55 x 4.8 in) | 57.2 x 104.9 millimeters (2.25 x 4.13 in) |
| Weight | 160 grams (5.6 ounces) | 89 grams (3.12 ounces) |
| Build, materials | feature not registered | feature not registered |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| LG Optimus F3Q (D520) | Samsung Rex 70 (S3802) | |
| Display type | TFT IPS LCD | TFT LCD |
| Screen size | 4" inches | 3" inches |
| Screen-to-body ratio | ~57.7% (screen-to-body ratio) | ~46.4% (screen-to-body ratio) |
| Display resolution | 480x800 pixels | 240x320 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 233 PPI | 133 PPI |
| Colors | 16 million | 65 thousand |
| Scratch-resistant glass | Not supported | Not supported |
| Refresh rate | feature not registered | feature not registered |
| Display features | feature not registered | feature not registered |
🤖 Operating System | ||
| LG Optimus F3Q (D520) | Samsung Rex 70 (S3802) | |
| System version | Android 4.1.2 Jelly Bean | Proprietary OS |
| Firmware update | feature not registered | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| LG Optimus F3Q (D520) | Samsung Rex 70 (S3802) | |
| Chipset | 32bit: Qualcomm Snapdragon 400 MSM8930 | 32bit |
| CPU | Dual-core, 1 processor: 2x 1.2GHz Krait 200 (Dual-core) | Single-core, 1 processor: Single-core XMM 2250m (Single-core) |
| GPU graphical controller | Qualcomm Adreno 305 | feature not registered |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| LG Optimus F3Q (D520) | Samsung Rex 70 (S3802) | |
| RAM memory | 1GB LPDDR2 | feature not registered |
| Internal storage | 4GB (1GB available) | 10MB |
| External storage | Until 32GB microSD, microSDHC (dedicated slot) | Until 32GB microSD, microSDHC (dedicated slot) |
📶 Mobile networks | ||
| LG Optimus F3Q (D520) | Samsung Rex 70 (S3802) | |
| Dual-SIM | Not supported | Dual-SIM Standby - Call active on one sim card (dedicated slot) |
| SIM card | 1 slot (Single-SIM) Standard mini-SIM (2FF) | 2 slots (Dual-SIM) Standard mini-SIM (2FF) |
| Maximum Download / Upload | 100/50 Mbps | 0.236 Mbps |
| Network technology | 2G, 3G, 4G | 2G |
| 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 | GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 850/1700/1900/2100 | Not supported |
| Primary 4G network | LTE 700/1700/1900/2100 | Not supported |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, LTE | GPRS, EDGE |
| Secondary 2G network | Not supported | GSM 850/900/1800/1900 |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | Not supported | GPRS |
📷 Camera | ||
| LG Optimus F3Q (D520) | Samsung Rex 70 (S3802) | |
| Back camera (main camera) | 5 megapixels | 2 megapixels |
| Main camera resolution | 2560x1920 pixels | 1600x1200 pixels |
| Video recording (primary) | Full HD (1920x1080) 30 fps | Supported |
| Flash | LED flash | Not supported |
| Focal aperture | feature not registered | feature not registered |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | feature not registered | feature not registered |
| Autofocus | Autofocus | Not supported |
| Touch focus | Supported | feature not registered |
| Image stabilization | feature not registered | feature not registered |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | feature not registered |
| BSI sensor | Not supported | feature not registered |
| HDR | HDR photo only main camera | feature not registered |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| LG Optimus F3Q (D520) | Samsung Rex 70 (S3802) | |
| Front camera (secondary) | 0.3 megapixels | Not supported |
| Front camera resolution | 640x480 pixels | Not supported |
| Video recording (secondary) | VGA (640x480) | Not supported |
| Front flash | Not supported | Not supported |
| Focal aperture | feature not registered | feature not registered |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | feature not registered | feature not registered |
🔉 Sound and multimedia | ||
| LG Optimus F3Q (D520) | Samsung Rex 70 (S3802) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | Not supported | feature not registered |
| Radio | Not supported | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, DivX, H.264, H.263, WMV | MP4, H.263 |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, eAAC+ |
🔌 Connectivity | ||
| LG Optimus F3Q (D520) | Samsung Rex 70 (S3802) | |
| 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 | 3.0 |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) | 802.11 b/g/n [wifi4] (2.4GHz) |
| DLNA | Supported | feature not registered |
| GPS | S-GPS, GeoTagging | Not supported |
| NFC | Supported | Not supported |
| Infrared port | feature not registered | feature not registered |
🧭 Sensors | ||
| LG Optimus F3Q (D520) | Samsung Rex 70 (S3802) | |
| Sensors | Accelerometer Ambient light sensor Proximity sensor | Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| LG Optimus F3Q (D520) | Samsung Rex 70 (S3802) | |
| Battery type | Li-Ion: lithium-ion (Removable) | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 2460 mAh | 1000 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | feature not registered | feature not registered |
| Talk time autonomy | 15 hours | 13 hours |
| Standby | 360 hours (15 days) | 490 hours (20.4 days) |
➕ Other features | ||
| LG Optimus F3Q (D520) | Samsung Rex 70 (S3802) | |
| Call control | Voice dialing, Voice recorder | Voice recorder |
| Messaging | SMS (T9), MMS, E-mail, Push mail | SMS, MMS, E-mail |
| Hands-free calling | Supported | Supported |
| Video calling | Supported | Not supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | HTML, XHTML, HTML5 | feature not registered |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Retractable QWERTY keyboard | Not supported |
| Miscellaneous | • Colors: Blue • T-Mobile TV • Quick MEMO • HAC M3/T3 • WiFi hotspot • Java framework | • Colors: White, Gray, Blue • Samsung TouchWiz UI • ChatON • Opera browser • Facebook, Twitter, YouTube • Java framework |
☢️ Radiation rate | ||
| LG Optimus F3Q (D520) | Samsung Rex 70 (S3802) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |