Phone Comparison - LG G3 vs LG K61 vs Samsung Galaxy A21

general General Info

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)
-
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

hardware Hardware and OS

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)

display Display

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 yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio Yes No FM radio
Games Yes + Downloadable Yes + Downloadable Yes + Downloadable
Loud Speaker yes yes yes

camera Camera

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]

connectivity Connectivity and Data Rate

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

memory User Memory

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

Apps Sensors

Fingerprint fingerprint not supported fingerprint supported fingerprint supported
Proximity Sensor proximity sensor present proximity sensor present proximity sensor present
Accelerometer Sensor accelerometer sensor present accelerometer sensor present accelerometer sensor present
NFC NFC supported NFC supported NFC not supported

battery Battery

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 - - -