Screen size
G51Winner: 6.1"+18%
R1 HD5.0"
Quick verdict
G51 leads the measured specs 8-3.
Measured wins
G51
8
spec wins
Overall winner
Ties
6
equal specs
R1 HD
3
spec wins
Screen size
Technology
G51
GSM / HSPA / LTE
R1 HD
GSM / HSPA / LTE
2G bands
G51
GSM 850 / 900 / 1800 / 1900
R1 HD
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands
G51
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
R1 HD
HSDPA 850 / 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
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
equal specs5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
R1 HD
2, 4, 7, 12, 17
Speed
G51
HSPA, LTE
R1 HD
HSPA 42.2/11.5 Mbps, LTE Cat4 150/50 Mbps
Announced
G51
2022, June 03. Released 2022, June 03
R1 HD
2016, June. Released 2016, June
Status
G51
Discontinued
R1 HD
Discontinued
Dimensions
G51
155.3 x 73.5 x 9.5 mm (6.11 x 2.89 x 0.37 in)
R1 HD
143.5 x 72 x 8.7 mm (5.65 x 2.83 x 0.34 in)
Weight
G51
166 g (5.86 oz)
R1 HD
142 g (5.01 oz)
SIM
G51
Nano-SIM + Nano-SIM
R1 HD
Dual SIM (Micro-SIM, dual stand-by)
Type
G51
IPS LCD
R1 HD
IPS LCD
Size
G51
6.1 inches, 92.9 cm2 (~81.4% screen-to-body ratio)
R1 HD
5.0 inches, 68.9 cm2 (~66.7% screen-to-body ratio)
Resolution
G51
720 x 1520 pixels, 19:9 ratio (~276 ppi density)
R1 HD
720 x 1280 pixels, 16:9 ratio (~294 ppi density)
Protection
G51
-
R1 HD
Corning Gorilla Glass 3
OS
G51
Android 11 (Go edition)
R1 HD
Android 6.0 (Marshmallow)
Chipset
G51
Mediatek MT6761 Helio A22 (12 nm)
R1 HD
Mediatek MT6735 (28 nm)
CPU
G51
Quad-core 2.0 GHz Cortex-A53
R1 HD
Quad-core 1.3 GHz Cortex-A53
GPU
G51
PowerVR GE8320
R1 HD
Mali-T720
Card slot
G51
microSDXC
R1 HD
microSDXC (dedicated slot)
Internal
G51
32GB 2GB RAM
R1 HD
8GB 1GB RAM, 16GB 2GB RAM
Other
G51
eMMC 5.1
R1 HD
-
Dual
G51
8 MP Auxiliary lens
R1 HD
-
Features
G51
LED flash, HDR, panorama
R1 HD
LED flash, panorama, HDR
Video
G51
1080p@30fps
R1 HD
1080p@30fps
Single
G51
-
R1 HD
8 MP, f/2.0, 1/4.0", 1.12µm, AF
Single
G51
8 MP
R1 HD
5 MP
Video
G51
720p@30fps
R1 HD
Features
G51
-
R1 HD
LED flash
Loudspeaker
G51
Yes
R1 HD
Yes
3.5mm jack
G51
Yes
R1 HD
Yes
WLAN
G51
Wi-Fi 802.11 a/b/g/n, Wi-Fi Direct
R1 HD
Wi-Fi 802.11 b/g/n
Bluetooth
G51
4.2, A2DP, LE
R1 HD
4.0, A2DP
Positioning
G51
GPS
R1 HD
GPS
NFC
G51
No
R1 HD
No
Radio
G51
FM radio
R1 HD
No
USB
G51
microUSB 2.0
R1 HD
microUSB 2.0
Sensors
G51
Fingerprint (rear-mounted), accelerometer, proximity
R1 HD
Accelerometer, proximity
Type
G51
Li-Po 3000 mAh
R1 HD
Li-Ion 2500 mAh, non-removable
Stand-by
G51
-
R1 HD
Up to 600 h (2G) / Up to 500 h (3G)
Talk time
G51
-
R1 HD
Up to 24 h (2G) / Up to 15 h (3G)
Colors
G51
Black, Blue, Green, Silver, Gold
R1 HD
Midnight Black
Models
G51
-
R1 HD
R1 HD