Screen size
equal specs50 Diamond5.0"
50 Helium 4G5.0"
Quick verdict
50 Diamond leads the measured specs 11-0.
Measured wins
50 Diamond
11
spec wins
Overall winner
Ties
6
equal specs
50 Helium 4G
0
spec wins
Screen size
equal specsTechnology
50 Diamond
GSM / HSPA / LTE
50 Helium 4G
GSM / HSPA / LTE
2G bands
50 Diamond
GSM 850 / 900 / 1800 / 1900
50 Helium 4G
GSM 850 / 900 / 1800 / 1900
3G bands
50 Diamond
HSDPA 850 / 900 / 2100
50 Helium 4G
HSDPA 900 / 2100 / 1800
4G bands
50 Diamond
1, 3, 7, 20
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
equal specsUSB
equal specs5G support
equal specsNFC
3.5mm jack
equal specsSD card
equal specsStereo speakers
50 Helium 4G
1, 3, 7, 8
Speed
50 Diamond
HSPA 42.2/11.5 Mbps, LTE Cat4 150/50 Mbps
50 Helium 4G
HSPA 42.2/11.5 Mbps, LTE Cat4 150/50 Mbps
Announced
50 Diamond
2014, October. Released 2015, January
50 Helium 4G
2014. Released 2014
Status
50 Diamond
Discontinued
50 Helium 4G
Discontinued
Dimensions
50 Diamond
146 x 70.4 x 8 mm (5.75 x 2.77 x 0.31 in)
50 Helium 4G
145 x 71.5 x 9 mm (5.71 x 2.81 x 0.35 in)
Weight
50 Diamond
142 g (5.01 oz)
50 Helium 4G
160 g (5.64 oz)
SIM
50 Diamond
Dual SIM (Micro-SIM, dual stand-by)
50 Helium 4G
Micro-SIM
Type
50 Diamond
IPS LCD
50 Helium 4G
IPS LCD
Size
50 Diamond
5.0 inches, 69.2 cm2 (~67.4% screen-to-body ratio)
50 Helium 4G
5.0 inches, 68.9 cm2 (~66.5% screen-to-body ratio)
Resolution
50 Diamond
1080 x 1920 pixels, 16:9 ratio (~440 ppi density)
50 Helium 4G
720 x 1280 pixels, 16:9 ratio (~294 ppi density)
OS
50 Diamond
Android 4.4.4 (KitKat)
50 Helium 4G
Android 4.3 (Jelly Bean)
Chipset
50 Diamond
Qualcomm MSM8939 Snapdragon 615 (28 nm)
50 Helium 4G
Qualcomm MSM8926 Snapdragon 400 (28 nm)
CPU
50 Diamond
Octa-core (4x1.5 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53)
50 Helium 4G
Quad-core 1.2 GHz Cortex-A7
GPU
50 Diamond
Adreno 405
50 Helium 4G
Adreno 305
Card slot
50 Diamond
microSDXC
50 Helium 4G
microSDHC (dedicated slot)
Internal
50 Diamond
16GB 2GB RAM
50 Helium 4G
8GB 1GB RAM
Other
50 Diamond
eMMC 4.5
50 Helium 4G
eMMC 4.5
Single
50 Diamond
16 MP, AF
50 Helium 4G
8 MP, AF
Features
50 Diamond
LED flash
50 Helium 4G
LED flash
Video
50 Diamond
1080p@30fps
50 Helium 4G
1080p@30fps
Single
50 Diamond
8 MP
50 Helium 4G
2 MP
Video
50 Diamond
50 Helium 4G
Loudspeaker
50 Diamond
Yes
50 Helium 4G
Yes
3.5mm jack
50 Diamond
Yes
50 Helium 4G
Yes
WLAN
50 Diamond
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
50 Helium 4G
Wi-Fi 802.11 b/g/n, hotspot, Wi-Fi Direct, DLNA
Bluetooth
50 Diamond
4.0, A2DP
50 Helium 4G
4.0, A2DP, EDR, LE
Positioning
50 Diamond
GPS
50 Helium 4G
GPS, GLONASS
NFC
50 Diamond
Yes
50 Helium 4G
No
Radio
50 Diamond
FM radio
50 Helium 4G
FM radio
USB
50 Diamond
microUSB 2.0
50 Helium 4G
microUSB 2.0
Sensors
50 Diamond
Accelerometer, proximity, compass
50 Helium 4G
Accelerometer, proximity, compass
Type
50 Diamond
Li-Po 2700 mAh, non-removable
50 Helium 4G
Li-Ion 2000 mAh, removable
Talk time
50 Diamond
-
50 Helium 4G
Up to 10 h (2G) / Up to 8 h (3G)
Colors
50 Diamond
Black, Electric yellow
50 Helium 4G
Black
SAR EU
50 Diamond
0.40 W/kg (head) 0.71 W/kg (body)
50 Helium 4G
0.37 W/kg (head) 0.89 W/kg (body)
Price
50 Diamond
About 200 EUR
50 Helium 4G
About 280 EUR