Cat B35 vs Cat S61

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900
3G network

HSDPA 850, 900, 1900, 2100

HSDPA 850, 900, 1700, 1900, 2100
4G network

LTE frequency band 1(2100), 3(1800), 7(2600), 8(900), 20(800)

LTE frequency band 1(2100), 2(1900), 3(1800), 5(850), 7(2600), 8(900), 19(800), 20(800), 26(850), 28(700), 38(2600), 39(1900), 40(2300), 41(2500)
HSDPA speed

-

42.2 Mbps
HSUPA speed

-

5.76 Mbps
LTE speed

LTE, Cat4, 150 Mbps download, 51 Mbps upload

-
LTE-A speed

-

LTE-A, (3CA) Cat12, 600 Mbps download, 150 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
SIM

Single SIM (Nano-SIM) or Hybrid Dual SIM (Nano-SIM, dual stand-by)

Dual SIM (Nano-SIM, dual stand-by)
Height

138 mm

150 mm
Width

60 mm

76 mm
Thickness

14 mm

13 mm
Weight

130 g
Waterproof

IP68, 1.2m and 35 minutes

IP68, 3m and 60 minutes
Dust proof

Yes, IP68

IP68
Resistance drop

1.8m

-
MIL-STD-810G

Yes

Yes
Colors

Black

Black

Main camera
2 MP

16 MP, FLIR thermal camera (Lepton module)
Primary camera resolution

-

4608 x 3456 pixels
Primary camera video

480p@30fps

2160p@30fps
Primary camera Autofocus

-

phase detection autofocus
Primary camera flash

LED flash

dual-LED dual-tone flash
Camera features

-

Thermal imaging, face detection, geo-tagging, heat palettes, panorama, temp. spot meter, touch focus

Features
Messaging SMS

-

SMS(threaded view)
Messaging MMS

-

MMS
Messaging Email

-

Email
Messaging IM

-

IM
Messaging Push Email

-

Push Email
Sensors

Accelerometer

Accelerometer, barometer, compass, gyro, indoor air quality sensor, proximity