Screen size
equal specsS404.7"
S504.7"
Quick verdict
S40 leads the measured specs 6-4.
Measured wins
S40
6
spec wins
Overall winner
Ties
8
equal specs
S50
4
spec wins
Screen size
equal specsTechnology
S40
GSM / HSPA / LTE
S50
GSM / HSPA / LTE
2G bands
S40
GSM 850 / 900 / 1800 / 1900
S50
GSM 850 / 900 / 1800 / 1900
3G bands
S40
HSDPA 850 / 900 / 2100 - Global, HSDPA 850 / 1700(AWS) / 1900 - North America
S50
HSDPA 850 / 900 / 2100 , HSDPA 850 / 1700 / 1900 / 2100
4G bands
S40
1, 3, 7, 8, 20 - Global, 2, 4, 5, 7, 12, 17 - North America
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
equal specsFront camera
Battery
Wired charging
Weight
equal specsThickness
IP rating
Wi‑Fi
Bluetooth
USB
equal specs5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
S50
1, 3, 5, 7, 8, 20
Speed
S40
HSPA, LTE Cat4 150/50 Mbps
S50
HSPA, LTE Cat4 150/50 Mbps
Announced
S40
2015, July. Released 2015, August
S50
2014, September. Released 2014, November
Status
S40
Discontinued
S50
Discontinued
Dimensions
S40
144.9 x 74.1 x 12.5 mm (5.70 x 2.92 x 0.49 in)
S50
144.5 x 77 x 12.7 mm (5.69 x 3.03 x 0.5 in)
Weight
S40
185 g (6.53 oz)
S50
185 g (6.53 oz)
SIM
S40
Nano-SIM
S50
Micro-SIM
Other
S40
IP68 dust tight and water resistant (immersible up to 1.5m for 30 min) Drop resistant up to 1.8m MIL-STD-810G compliant
S50
IP67 dust/water resistant (up to 1m for 30 min) MIL-STD-810G compliant Drop resistant up to 1.2m
Type
S40
IPS LCD
S50
IPS LCD
Size
S40
4.7 inches, 60.9 cm2 (~56.7% screen-to-body ratio)
S50
4.7 inches, 60.9 cm2 (~54.7% screen-to-body ratio)
Resolution
S40
540 x 960 pixels, 16:9 ratio (~234 ppi density)
S50
720 x 1280 pixels, 16:9 ratio (~312 ppi density)
Protection
S40
Corning Gorilla Glass 4
S50
Corning Gorilla Glass 3
OS
S40
Android 5.1 (Lollipop)
S50
Android 4.4 (KitKat)
Chipset
S40
Qualcomm MSM8909 Snapdragon 210 (28 nm)
S50
Qualcomm MSM8926 Snapdragon 400 (28 nm)
CPU
S40
Quad-core 1.1 GHz Cortex-A7
S50
Quadcore 1.2 GHz Cortex-A7
GPU
S40
Adreno 304
S50
Adreno 305
Card slot
S40
microSDXC (dedicated slot)
S50
microSDXC (dedicated slot)
Internal
S40
16GB 1GB RAM
S50
8GB 2GB RAM
Other
S40
eMMC 4.5
S50
eMMC 4.5
Single
S40
8 MP, AF
S50
8 MP, AF
Features
S40
LED flash
S50
LED flash
Video
S40
1080p@60fps
S50
1080p@30fps
Single
S40
2 MP
S50
VGA
Video
S40
S50
Loudspeaker
S40
Yes
S50
Yes
3.5mm jack
S40
Yes
S50
Yes
WLAN
S40
Wi-Fi 802.11 b/g/n, hotspot
S50
Wi-Fi 802.11 b/g/n, hotspot
Bluetooth
S40
4.1, A2DP, LE
S50
4.0, A2DP, LE
Positioning
S40
GPS, GLONASS
S50
GPS, GLONASS
NFC
S40
Yes
S50
Yes
Radio
S40
FM radio
S50
FM radio
USB
S40
microUSB 2.0, OTG
S50
microUSB 2.0, OTG
Sensors
S40
Accelerometer, proximity, compass
S50
Accelerometer, proximity, compass
Type
S40
Li-Ion 3000 mAh, non-removable
S50
Li-Ion 2630 mAh, non-removable
Stand-by
S40
Up to 936 h
S50
Up to 792 h
Talk time
S40
Up to 18 h
S50
Up to 16 h
Charging
S40
-
S50
Wireless (Qi)
Colors
S40
Black
S50
Forest, Slate
Price
S40
About 440 EUR
S50
About 460 EUR