Cat S31 vs Sharp Aquos Zero

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900
3G network

HSDPA 850, 900, 1900, 2100 - EU; HSDPA 850, 900, 1700(AWS), 1900, 2100 - USA

HSDPA 900, 2100
4G network

LTE frequency band 1(2100), 2(1900), 3(1800), 5(850), 7(2600), 8(900), 20(800) - EU; LTE frequency band 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 12(700), 17(700) - USA

LTE frequency band 1(2100), 3(1800), 7(2600), 8(900), 28(700), 38(2600)
LTE speed

LTE, Cat4, 150 Mbps download, 50 Mbps upload

LTE, Cat18, 1.2 Gbps download, 221 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

-

Front glass, aluminum frame
SIM

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

Nano-SIM
Height

146 mm

154 mm
Width

74.4 mm

73 mm
Thickness

12.6 mm

8.8 mm
Weight

200 g

146 g
Waterproof

IP68, 1.2 m and 35 minutes

IP68, 1.5m and 30 minutes
Dust proof

IP68

IP68
MIL-STD-810G

Yes - dust, humidity, rain, salt, vibration, solar radiation, transport and thermal shock resistant

-
Colors

Black

Black

Display
Display type

TFT capacitive touchscreen

OLED capacitive touchscreen
Physical size

4.7 inches

6.2 inches
Resolution

720 x 1280 pixels

1440 x 2992 pixels
Pixel density

312 ppi

536 ppi
Display colors

-

16777216
Protection

Corning Gorilla Glass 3

Scratch resistant, 2.5D curved glass screen, Corning Gorilla Glass 5
Multitouch

Yes

Yes
Display features

-

DCI-P3, HDR10, Dolby Vision

Main camera
Main camera

8 MP

22.6 MP, f/1.9 , 22 mm
Primary camera resolution

-

5488 x 4112 pixels
Primary camera video

720p@30fps

2160p@30fps, 1080p@30fps
Primary camera Autofocus

autofocus

-
Primary camera flash

LED flash

LED flash
Primary camera phase detection autofocus

-

phase detection autofocus
Camera features

Geo-tagging, face detection, touch focus

Autofocus, continuous shooting, digital zoom, optical zoom, digital image stabilization, optical image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode

Connectivity
WLAN

Wi-Fi 802.11b, 802.11g, 802.11n

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11ac
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

-

Yes
Wi-Fi display

-

Yes
WLAN WiFi Dual Band

-

Yes
USB

microUSB 2.0

Type-C 1.0 reversible connector (PowerDelivery 2.0)
USB On-The-Go

Yes

-
Bluetooth

v4.1

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
NFC

-

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

-

Yes
BDS

Yes

-
QZSS

-

Yes

Features
Messaging SMS

SMS(threaded view)

-
Messaging MMS

MMS

-
Messaging Email

Email

-
Messaging IM

IM

-
Messaging Push Email

Push Email

-
Java

No

-
Sensors

Accelerometer, compass, proximity

Accelerometer, compass, gyroscope, fingerprint, proximity