Screen size
B352.4"
S61Winner: 5.2"+54%
Quick verdict
S61 leads the measured specs 13-1.
Measured wins
B35
1
spec wins
Ties
5
equal specs
S61
13
spec wins
Overall winner
Screen size
Technology
B35
GSM / HSPA / LTE
S61
GSM / HSPA / LTE
2G bands
B35
GSM 850 / 900 / 1800 / 1900
S61
GSM 850 / 900 / 1800 / 1900
3G bands
B35
HSDPA 850 / 900 / 1900 / 2100
S61
HSDPA 850 / 900 / 1700 / 1900 / 2100 - EU/ROW, HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - USA
4G bands
B35
1, 3, 7, 8, 20
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
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
B35
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
B35
2018, September. Released 2018, October
S61
2018, February. Released 2018, June
Status
B35
Discontinued
S61
Discontinued
Dimensions
B35
138 x 60 x 14 mm (5.43 x 2.36 x 0.55 in)
S61
163 x 78 x 13 mm (6.42 x 3.07 x 0.51 in)
Weight
B35
130 g (4.59 oz)
S61
250 g (8.82 oz)
SIM
B35
· Nano-SIM· Nano-SIM + Nano-SIM
S61
· Nano-SIM (South Africa only)· Nano-SIM + Nano-SIM
Other
B35
IP68 dust tight and water resistant (immersible up to 1.2m for 35 min) MIL-STD-810G compliant Drop resistant up to 1.8m Flashlight
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
B35
-
S61
Glass front (Gorilla Glass 5), plastic back, aluminum frame
Type
B35
TFT
S61
IPS LCD
Size
B35
2.4 inches, 17.8 cm2 (~21.5% screen-to-body ratio)
S61
5.2 inches, 74.5 cm2 (~58.6% screen-to-body ratio)
Resolution
B35
240 x 320 pixels, 4:3 ratio (~167 ppi density)
S61
1080 x 1920 pixels, 16:9 ratio (~424 ppi density)
Protection
B35
Scratch-proof glass
S61
Corning Gorilla Glass 5
OS
B35
KaiOS 2.5.1
S61
Android 8.0 (Oreo), upgradable to Android 9.0 (Pie)
Chipset
B35
Qualcomm MSM8905 Snapdragon 205 (28 nm)
S61
Qualcomm SDM630 Snapdragon 630 (14 nm)
CPU
B35
Dual-core (2x1.3 GHz Cortex-A7)
S61
Octa-core 2.2 GHz Cortex-A53
GPU
B35
Adreno 304
S61
Adreno 508
Card slot
B35
microSDXC (uses shared SIM slot)
S61
microSDXC (uses shared SIM slot)
Internal
B35
4GB 512MB RAM
S61
64GB 4GB RAM
Other
B35
eMMC 4.5
S61
-
Single
B35
2 MP
S61
16 MP, PDAF, FLIR thermal camera (Lepton module)
Features
B35
LED flash
S61
Thermal imaging, heat palettes, temp. spot meter, dual-LED dual-tone flash, panorama
Video
B35
480p@30fps
S61
4K@30fps, 1080p@30fps
Other
B35
No
S61
-
Single
B35
-
S61
8 MP
Video
B35
-
S61
1080p@30fps
Loudspeaker
B35
Yes
S61
Yes
3.5mm jack
B35
Yes
S61
Yes
WLAN
B35
Wi-Fi 802.11 b/g/n
S61
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth
B35
4.1, A2DP, LE
S61
5.0, A2DP, LE
Positioning
B35
GPS, GLONASS
S61
GPS, GLONASS, GALILEO, QZSS, SBAS
NFC
B35
No
S61
Yes
Radio
B35
FM radio
S61
FM radio
USB
B35
microUSB 2.0
S61
USB Type-C 2.0, OTG
Sensors
B35
Accelerometer
S61
Accelerometer, gyro, proximity, compass, barometer, indoor air quality sensor
Other
B35
Downloadable applications Facebook, Gmail, Whatsapp, etc.
S61
Laser-assisted distance measurement tool
Type
B35
Li-Ion 2300 mAh, non-removable
S61
Li-Ion 4500 mAh, non-removable
Stand-by
B35
Up to 720 h (3G)
S61
Up to 888 h (3G)
Talk time
B35
Up to 12 h (3G)
S61
Up to 35 h (3G)
Charging
B35
-
S61
18W wired, QC4
Colors
B35
Black
S61
Black
Price
B35
About 110 EUR
S61
About 900 EUR