Screen size
equal specs50 Helium 4G5.0"
50d Helium 4G5.0"
Quick verdict
50d Helium 4G leads the measured specs 5-0.
Measured wins
50 Helium 4G
0
spec wins
Ties
12
equal specs
50d Helium 4G
5
spec wins
Overall winner
Screen size
equal specsTechnology
50 Helium 4G
GSM / HSPA / LTE
50d Helium 4G
GSM / HSPA / LTE
2G bands
50 Helium 4G
GSM 850 / 900 / 1800 / 1900
50d Helium 4G
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands
50 Helium 4G
HSDPA 900 / 2100 / 1800
50d Helium 4G
HSDPA 900 / 2100
4G bands
50 Helium 4G
1, 3, 7, 8
Resolution
equal specsRefresh rate
Peak brightness
Pixel density
equal specsCPU speed
equal specsRAM
equal specsStorage
equal specsMain camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
equal specsUSB
equal specs5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
50d Helium 4G
3, 7, 20
Speed
50 Helium 4G
HSPA 42.2/11.5 Mbps, LTE Cat4 150/50 Mbps
50d Helium 4G
HSPA 42.2/11.5 Mbps, LTE Cat4 150/50 Mbps
Announced
50 Helium 4G
2014. Released 2014
50d Helium 4G
2015, July. Released 2015, July
Status
50 Helium 4G
Discontinued
50d Helium 4G
Discontinued
Dimensions
50 Helium 4G
145 x 71.5 x 9 mm (5.71 x 2.81 x 0.35 in)
50d Helium 4G
146 x 72.2 x 8.4 mm (5.75 x 2.84 x 0.33 in)
Weight
50 Helium 4G
160 g (5.64 oz)
50d Helium 4G
154 g (5.43 oz)
SIM
50 Helium 4G
Micro-SIM
50d Helium 4G
Dual SIM (Micro-SIM, dual stand-by)
Type
50 Helium 4G
IPS LCD
50d Helium 4G
IPS LCD
Size
50 Helium 4G
5.0 inches, 68.9 cm2 (~66.5% screen-to-body ratio)
50d Helium 4G
5.0 inches, 68.9 cm2 (~65.4% screen-to-body ratio)
Resolution
50 Helium 4G
720 x 1280 pixels, 16:9 ratio (~294 ppi density)
50d Helium 4G
720 x 1280 pixels, 16:9 ratio (~294 ppi density)
OS
50 Helium 4G
Android 4.3 (Jelly Bean)
50d Helium 4G
Android 5.1 (Lollipop)
Chipset
50 Helium 4G
Qualcomm MSM8926 Snapdragon 400 (28 nm)
50d Helium 4G
Qualcomm MSM8916 Snapdragon 410 (28 nm)
CPU
50 Helium 4G
Quad-core 1.2 GHz Cortex-A7
50d Helium 4G
Quad-core 1.2 GHz Cortex-A53
GPU
50 Helium 4G
Adreno 305
50d Helium 4G
Adreno 305
Card slot
50 Helium 4G
microSDHC (dedicated slot)
50d Helium 4G
microSD
Internal
50 Helium 4G
8GB 1GB RAM
50d Helium 4G
8GB 1GB RAM
Other
50 Helium 4G
eMMC 4.5
50d Helium 4G
eMMC 4.5
Single
50 Helium 4G
8 MP, AF
50d Helium 4G
13 MP, AF
Features
50 Helium 4G
LED flash
50d Helium 4G
LED flash
Video
50 Helium 4G
1080p@30fps
50d Helium 4G
1080p@30fps
Single
50 Helium 4G
2 MP
50d Helium 4G
5 MP
Video
50 Helium 4G
50d Helium 4G
Loudspeaker
50 Helium 4G
Yes
50d Helium 4G
Yes
3.5mm jack
50 Helium 4G
Yes
50d Helium 4G
Yes
WLAN
50 Helium 4G
Wi-Fi 802.11 b/g/n, hotspot, Wi-Fi Direct, DLNA
50d Helium 4G
Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot
Bluetooth
50 Helium 4G
4.0, A2DP, EDR, LE
50d Helium 4G
4.0, LE
Positioning
50 Helium 4G
GPS, GLONASS
50d Helium 4G
GPS
NFC
50 Helium 4G
No
50d Helium 4G
No
Radio
50 Helium 4G
FM radio
50d Helium 4G
FM radio
USB
50 Helium 4G
microUSB 2.0
50d Helium 4G
microUSB 2.0
Sensors
50 Helium 4G
Accelerometer, proximity, compass
50d Helium 4G
Accelerometer, proximity, compass
Type
50 Helium 4G
Li-Ion 2000 mAh, removable
50d Helium 4G
Li-Ion 2100 mAh, removable
Talk time
50 Helium 4G
Up to 10 h (2G) / Up to 8 h (3G)
50d Helium 4G
-
Colors
50 Helium 4G
Black
50d Helium 4G
Dark blue, Black
SAR EU
50 Helium 4G
0.37 W/kg (head) 0.89 W/kg (body)
50d Helium 4G
-
Price
50 Helium 4G
About 280 EUR
50d Helium 4G
About 140 EUR