Screen size
G51Winner: 6.1"+15%
R25.2"
Quick verdict
G51 leads the measured specs 7-2.
Measured wins
G51
7
spec wins
Overall winner
Ties
8
equal specs
R2
2
spec wins
Screen size
Technology
G51
GSM / HSPA / LTE
R2
GSM / HSPA
2G bands
G51
GSM 850 / 900 / 1800 / 1900
R2
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands
G51
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
R2
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
G51
2, 3, 4, 5, 7, 12, 17, 28, 66
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
equal specsFront camera
equal specsBattery
equal specsWired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
equal specs5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
R2
-
Speed
G51
HSPA, LTE
R2
HSPA 21.1/5.76 Mbps
Announced
G51
2022, June 03. Released 2022, June 03
R2
2017, July. Released 2017, July
Status
G51
Discontinued
R2
Discontinued
Dimensions
G51
155.3 x 73.5 x 9.5 mm (6.11 x 2.89 x 0.37 in)
R2
150.3 x 74.3 x 9.6 mm (5.92 x 2.93 x 0.38 in)
Weight
G51
166 g (5.86 oz)
R2
156 g (5.50 oz)
SIM
G51
Nano-SIM + Nano-SIM
R2
Dual SIM (Micro-SIM)
Type
G51
IPS LCD
R2
IPS LCD
Size
G51
6.1 inches, 92.9 cm2 (~81.4% screen-to-body ratio)
R2
5.2 inches, 74.5 cm2 (~66.8% screen-to-body ratio)
Resolution
G51
720 x 1520 pixels, 19:9 ratio (~276 ppi density)
R2
720 x 1280 pixels, 16:9 ratio (~282 ppi density)
OS
G51
Android 11 (Go edition)
R2
Android 7.0 (Nougat)
Chipset
G51
Mediatek MT6761 Helio A22 (12 nm)
R2
Mediatek MT6580 (28 nm)
CPU
G51
Quad-core 2.0 GHz Cortex-A53
R2
Quad-core 1.3 GHz Cortex-A7
GPU
G51
PowerVR GE8320
R2
Mali-400MP2
Card slot
G51
microSDXC
R2
microSDXC
Internal
G51
32GB 2GB RAM
R2
8GB 1GB RAM
Other
G51
eMMC 5.1
R2
-
Dual
G51
8 MP Auxiliary lens
R2
-
Features
G51
LED flash, HDR, panorama
R2
Dual-LED dual-tone flash
Video
G51
1080p@30fps
R2
1080p@30fps
Single
G51
-
R2
8 MP
Single
G51
8 MP
R2
8 MP
Video
G51
720p@30fps
R2
Features
G51
-
R2
dual-LED dual-tone flash
Loudspeaker
G51
Yes
R2
Yes
3.5mm jack
G51
Yes
R2
Yes
WLAN
G51
Wi-Fi 802.11 a/b/g/n, Wi-Fi Direct
R2
Wi-Fi 802.11 b/g/n
Bluetooth
G51
4.2, A2DP, LE
R2
4.0, A2DP
Positioning
G51
GPS
R2
GPS
NFC
G51
No
R2
No
Radio
G51
FM radio
R2
FM radio
USB
G51
microUSB 2.0
R2
microUSB 2.0
Sensors
G51
Fingerprint (rear-mounted), accelerometer, proximity
R2
Fingerprint (rear-mounted), accelerometer, proximity, compass
Type
G51
Li-Po 3000 mAh
R2
Li-Po 3000 mAh, non-removable
Stand-by
G51
-
R2
Up to 725 h (2G) / Up to 625 h (3G)
Talk time
G51
-
R2
Up to 26 h (2G) / Up to 16 h (3G)
Colors
G51
Black, Blue, Green, Silver, Gold
R2
Black, Gold, Rose Gold, Silver