Phone Comparison - LG G3 vs LG K61 vs Samsung Galaxy A21
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| Manufacturer | LG | LG | Samsung |
| Announced | May 2014 | February 2020 | 2020, April 8 |
| Status | Available - June 2014 | Coming Soon - March 2020 | Coming soon. Exp. release 2020, April |
| Colors | Black, White, Gold | Titanium, White, Blue | Various |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
146.3 x 74.6 x 8.9 mm (5.76 x 2.94 x 0.35 in) |
164.5 x 77.5 x 8.4 mm (6.48 x 3.05 x 0.33 in) |
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| Weight | 149 g (5.26 oz) | - | - |
| SIM Type | - | Single SIM (Nano-SIM), Dual SIM (Nano-SIM, dual stand-by) | Single SIM (Nano-SIM), Dual SIM (Nano-SIM, dual stand-by) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 LTE - CDMA version |
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM only) |
| 3G Network | HSDPA 850 / 900 / 1700 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 1700(AWS) / 1900 / 2100 |
| 4G Network | LTE 800 / 900 /1800 / 2100 / 2600 | LTE (unspecified) | LTE |
| Messaging | SMS, MMS, EMail, IM | ||
| Build Features | - | - Fingerprint Sensor MIL-STD-810G compliant |
- Fingerprint Sensor Glass front, plastic back, plastic frame |
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| OS | Android OS, v4.4.2 (KitKat) | Android 10.0 | Android 10.0 |
| Processor | Quad-core 2.5 GHz Krait 400, Qualcomm MSM8974AC Snapdragon 801 | Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53), Mediatek MT6765 Helio P35 (12nm) | Octa-core (4x2.35 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53), Mediatek MT6765 Helio P35 (12nm) |
| GPU | Adreno 330 | PowerVR GE8320 | PowerVR GE8320 |
| RAM | 2 GB | 4 GB | 3 GB |
| Internal Memory | 16 GB ROM | 128 GB | 64 GB |
| External Memory | microSD, up to 128 GB | microSDXC (dedicated slot) | microSDXC (dedicated slot) |
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| Type | True HD-IPS + LCD capacitive touchscreen | IPS LCD Capacitive Touchscreen | HD+ Super AMOLED Capacitive Touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 5.5 inches | 6.5 inches | 6.5 inches |
| Resolution | 1440 x 2560 pixels (534 ppi) | 1080 x 2340 pixels (396 ppi) | 720 x 1600 pixels (270 ppi) |
| Screen-to-Body Ratio | 76.42% | 81.55% | - |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | Yes | No | FM radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 13 MP, 4160 x 3120 pixels | 48 MP + 8 MP + 2 MP + 5 MP | 16 MP + 8 MP + 2 MP + 2 MP |
| Flash | LED Flash | LED flash | No |
| Features | Auto focus, Simultaneous Video And Image Recording, Geo-tagging, Face Detection, HDR, OIS | 48 MP, (wide), PDAF 8 MP, (ultrawide) 2 MP (macro) 5 MP (depth) panorama, HDR |
16 MP, f/1.9, 28mm (wide), AF 8 MP, f/2.2, 12mm (ultrawide) 2 MP, (macro) 2 MP, (depth) panorama, HDR |
| Video | Yes, 2160p@30fps, 1080p@60fps, HDR, stereo sound rec., video stabilization | 2160p@30fps, 1080p@30fps | 1080p@30fps |
| Front Camera | Yes, 2.1 MP, 1080p@30fps [Similar] |
16 MP, f/2.0 HDR 1080p@30fps [Similar] |
13 MP HDR 1080p@30fps [Similar] |
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| GPRS | Class 12 (4+1/3+2/2+3/1+4 slots), 32 - 48 kbps | Yes | Yes |
| Edge | Class 12 | Yes | Yes |
| 3G | HSDPA, 42 Mbps; HSUPA, 21 Mbps; LTE, Cat4, 50 Mbps UL, 150 Mbps DL/ EV-DO Rev. A, up to 3.1 Mbps | HSPA 42.2/5.76 Mbps, LTE-A | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps |
| Bluetooth | Yes, v4.0 with A2DP, LE | 5.0, A2DP, LE | 5.0, A2DP, LE |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, Wi-Fi hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot |
| USB | Yes, microUSB v3.0 (SlimPort), USB On-the-go, USB Host | 2.0, Type-C 1.0 reversible connector | 2.0, Type-C 1.0 reversible connector, USB On-The-Go |
| GPS | Yes, with A-GPS support and GLONASS | Yes, with A-GPS | Yes, with A-GPS, GLONASS, BDS |
| Browser | HTML5 | Yes | Yes |
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| Internal | 16 GB ROM, 2 GB RAM | 128 GB, 4 GB RAM or 64 GB, 4 GB RAM | 64 GB, 3 GB RAM eMMC 5.1 |
| Expandable Storage | microSD, up to 128 GB | microSDXC (dedicated slot) | microSDXC (dedicated slot) |
| USB OTG | Supported | Supported | Supported |
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| Fingerprint | |
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| Proximity Sensor | |
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| Accelerometer Sensor | |
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| NFC | |
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| Type | Li-Ion Battery | Non-removable Li-Po Battery | Non-removable Li-Po Battery Fast battery charging 15W |
| Capacity | 3000 mAh | 4000 mAh | 4000 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
