Screen size
S314.7"
S61Winner: 5.2"+9.6%
Quick verdict
S61 leads the measured specs 12-2.
Measured wins
S31
2
spec wins
Ties
5
equal specs
S61
12
spec wins
Overall winner
Screen size
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
equal specsWi‑Fi
Bluetooth
USB
equal specs5G support
equal specsNFC
3.5mm jack
equal specsSD card
equal specsStereo speakers
Technology
S31
GSM / HSPA / LTE
S61
GSM / HSPA / LTE
2G bands
S31
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)
S61
GSM 850 / 900 / 1800 / 1900
3G bands
S31
HSDPA 850 / 900 / 1900 / 2100 - EU, HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - USA
S61
HSDPA 850 / 900 / 1700 / 1900 / 2100 - EU/ROW, HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - USA
4G bands
S31
1, 2, 3, 5, 7, 8, 20 - EU, 2, 3, 4, 5, 7, 12, 17 - USA
S61
1, 2, 3, 5, 7, 8, 19, 20, 26, 28, 38, 39, 40, 41 - EU/ROW, 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 25, 26, 28, 29, 66 - USA
Speed
S31
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
S61
HSPA 42.2/5.76 Mbps, LTE (3CA) Cat12 600/150 Mbps
Announced
S31
2017, September. Released 2017, October
S61
2018, February. Released 2018, June
Status
S31
Discontinued
S61
Discontinued
Dimensions
S31
146 x 74.4 x 12.6 mm (5.75 x 2.93 x 0.50 in)
S61
163 x 78 x 13 mm (6.42 x 3.07 x 0.51 in)
Weight
S31
200 g (7.05 oz)
S61
250 g (8.82 oz)
SIM
S31
· Nano-SIM· Nano-SIM + Nano-SIM
S61
· Nano-SIM (South Africa only)· Nano-SIM + Nano-SIM
Other
S31
IP68 dust tight and water resistant (immersible up to 1.2m for 30 min) Drop resistant up to 1.8m MIL-STD-810G compliant
S61
IP68 dust tight and water resistant (immersible up to 3m for 60 min) Drop resistant up to 1.8m MIL-STD-810G compliant
Build
S31
-
S61
Glass front (Gorilla Glass 5), plastic back, aluminum frame
Type
S31
TFT
S61
IPS LCD
Size
S31
4.7 inches, 60.9 cm2 (~56.1% screen-to-body ratio)
S61
5.2 inches, 74.5 cm2 (~58.6% screen-to-body ratio)
Resolution
S31
720 x 1280 pixels, 16:9 ratio (~312 ppi density)
S61
1080 x 1920 pixels, 16:9 ratio (~424 ppi density)
Protection
S31
Corning Gorilla Glass 3
S61
Corning Gorilla Glass 5
OS
S31
Android 7.0 (Nougat)
S61
Android 8.0 (Oreo), upgradable to Android 9.0 (Pie)
Chipset
S31
Qualcomm MSM8909 Snapdragon 210 (28 nm)
S61
Qualcomm SDM630 Snapdragon 630 (14 nm)
CPU
S31
Quad-core 1.3 GHz Cortex-A7
S61
Octa-core 2.2 GHz Cortex-A53
GPU
S31
Adreno 304
S61
Adreno 508
Card slot
S31
microSDXC (dedicated slot)
S61
microSDXC (uses shared SIM slot)
Internal
S31
16GB 2GB RAM
S61
64GB 4GB RAM
Other
S31
eMMC 4.5
S61
-
Single
S31
8 MP, AF
S61
16 MP, PDAF, FLIR thermal camera (Lepton module)
Features
S31
LED flash
S61
Thermal imaging, heat palettes, temp. spot meter, dual-LED dual-tone flash, panorama
Video
S31
720p@30fps
S61
4K@30fps, 1080p@30fps
Single
S31
2 MP
S61
8 MP
Video
S31
S61
1080p@30fps
Loudspeaker
S31
Yes
S61
Yes
3.5mm jack
S31
Yes
S61
Yes
WLAN
S31
Wi-Fi 802.11 b/g/n
S61
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth
S31
4.1, A2DP, LE
S61
5.0, A2DP, LE
Positioning
S31
GPS, GLONASS, BDS
S61
GPS, GLONASS, GALILEO, QZSS, SBAS
NFC
S31
No
S61
Yes
Radio
S31
FM radio
S61
FM radio
USB
S31
microUSB 2.0, OTG
S61
USB Type-C 2.0, OTG
Sensors
S31
Accelerometer, proximity, compass
S61
Accelerometer, gyro, proximity, compass, barometer, indoor air quality sensor
Other
S31
-
S61
Laser-assisted distance measurement tool
Type
S31
Li-Ion 4000 mAh, non-removable
S61
Li-Ion 4500 mAh, non-removable
Charging
S31
-
S61
18W wired, QC4
Stand-by
S31
-
S61
Up to 888 h (3G)
Talk time
S31
-
S61
Up to 35 h (3G)
Colors
S31
Black
S61
Black
Price
S31
About 330 EUR
S61
About 900 EUR