Ulefone Armor 2 vs CAT S31

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Comparing the Ulefone Armor 2 vs CAT S31 across performance, display, camera, battery, storage and user rating to help determine the better smartphone.

Here is the summary of the results:

Performance: Ulefone Armor 2 runs at a higher processing speed of 2.6 GHz, while CAT S31 runs at 1.1 GHz, making Ulefone Armor 2 the better performer.


Display: Ulefone Armor 2 offers a screen size of 5 inches, while CAT S31 offers 4.7 inches, making Ulefone Armor 2 the larger display of the two. Both Ulefone Armor 2 and CAT S31 feature the same IPS LCD display.


Rear Camera: Ulefone Armor 2 offers a higher rear camera resolution with 16 MP, while CAT S31 offers 8 MP, making Ulefone Armor 2 better for rear camera photography.


Front Camera: Ulefone Armor 2 offers a higher front camera resolution with 8 MP, while CAT S31 offers 2 MP, making Ulefone Armor 2 better for front camera photography.


Battery: Ulefone Armor 2 offers a higher battery capacity with 4700 mAh, while CAT S31 offers 4000 mAh, making Ulefone Armor 2 better for longer battery life.


Storage: Ulefone Armor 2 offers higher internal storage with 64 GB, while CAT S31 offers 16 GB, making Ulefone Armor 2 the better option for storage.


User Rating: Ulefone Armor 2 receives a higher user rating of 3.5, while CAT S31 has a rating of 3.4.

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Ulefone Armor 2
₹43,900
(Discontinued)
CAT S31
₹27,500
(Discontinued)
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Summary

Release Date

N/A
12 Dec, 2018
11 Jun, 2026

Performance

MediaTek MT6757CD
Snapdragon 210
MediaTek Dimensity 8500 Extreme
Octa Core (upto 2.6 GHz)
Quad Core (upto 1.1 GHz)
Octa Core (upto 3.4 GHz)
6 GB RAM
2 GB RAM
12 GB RAM

Display

5.0 inches (12.7 cm)
4.7 inches (11.94 cm)
6.8 inches (17.27 cm)
IPS LCD
IPS LCD
Extreme AMOLED
1080x1920 px (FULL HD)
720x1280 px (HD)
1272x2772 px (FHD+)
N/A
N/A
144 Hz Refresh Rate

Rear Camera

16 MP
Primary Camera
8 MP
Primary Camera
50 MP
Primary Camera
N/A
N/A
50 MP
Ultra-Wide Angle Macro Camera
N/A
N/A
50 MP
Telephoto Camera (upto 3.5x Optical Zoom)

Front Camera

8 MP
2 MP
50 MP

Battery

4700 mAh
4000 mAh
6500 mAh
Fast Charging
N/A
90W Turbo Power Charging
N/A
N/A
Wireless Charging

Storage

64 GB
16 GB
256 GB
N/A
N/A
UFS 4.1

User Ratings

3.5/5
(24 ratings)
3.4/5
(114 ratings)
N/A

Compare Prices

Not Available in any store
Not Available in any store
₹44,999

User Feedback

General

Launch Date

N/A
N/A
Jun 04, 2026
(Official)

Operating System

Android v7.0 (Nougat)
Android v7.0 (Nougat)
Android v16

OS Updates

N/A
N/A
3 Year

Security Updates

N/A
N/A
5 Year

Performance

Performance Rating

Good
Below Avg
Excellent

Chipset

MediaTek MT6757CD
Qualcomm Snapdragon 210 MSM8909
MediaTek Dimensity 8500 Extreme

Processor

Octa core

2.6 GHz, Quad core, Cortex A53 1.6 GHz, Quad core, Cortex A53
Quad core, 1.1 GHz, Cortex A7
Octa core

3.4 GHz, Single core, Cortex A725 3.2 GHz, Tri core, Cortex A725 2.2 GHz, Quad core, Cortex A725

Architecture (The higher, the better)

64 bit
N/A
64 bit

Fabrication (The lower, the better)

N/A
N/A
4 nm

Graphics (GPU)

Mali-T880 MP2
Adreno 304
Mali-G720 MP8

RAM

6 GB
2 GB
12 GB

RAM Type

LPDDR4
N/A
LPDDR5X

Display

Display Rating

Excellent
Excellent
Best In Class

Display Type

IPS LCD
IPS LCD
Extreme AMOLED

Screen Size

5.0 inches  (12.7 cm)
4.7 inches  (11.94 cm)
6.8 inches  (17.27 cm)

Resolution

1080x1920 px (FULL HD)
720x1280 px (HD)
1272x2772 px (FHD+)

Peak Brightness

N/A
N/A
5200 nits

HBM Brightness

N/A
N/A
1800 nits

Refresh Rate

N/A
N/A
144 Hz

Aspect Ratio

N/A
N/A
19.6:9

Pixel Density

441 ppi
312 ppi
450 ppi

Screen to Body Ratio (calculated)

55.23 %
55.93 %
96.8 %

Screen Protection

Corning Gorilla Glass v3
Corning Gorilla Glass v3
Corning Gorilla Glass Glass 7i

Bezel-less Display

N/A
N/A
Yes

HDR 10 / HDR+ Support

N/A
N/A
Yes HDR 10+

Screen to Body Ratio (claimed by the brand)

N/A
N/A
96.8 %

Design

Height

159 mm
146 mm
162.7 mm

Width

78.3 mm
74.4 mm
75.6 mm

Thickness

14.5 mm
12.6 mm
7.19 mm

Weight

270 grams
200 grams
190 grams

Build Material

N/A
N/A
Back: Plastic

Water Resistance

Yes Water resistant IP68 (up to 60 minutes in a depth of 1.5 meter)
Yes Water resistant IP68 (up to 35 minutes in a depth of 1.2 meter)
Yes Water resistant IP68 IP69

Ruggedness

Dust proof
Dust proof
Dust proof

Rear Camera

Rear Camera Rating

Good
Below Avg
Excellent

Resolution

16 MP
Primary Cameraf/2.0
8 MP
Primary CameraCMOS image sensor
50 MP
Primary Cameraf/1.812 mm focal length LYT 710 2.0µm pixel size
N/A
N/A
50 MP
f/2.0 Ultra-Wide Angle Macro Camera12 mm focal length 1.28µm pixel size
N/A
N/A
50 MP
Telephoto Camera81 mm focal length 1.28µm pixel size

Autofocus

Yes
Yes
Yes

OIS

N/A
N/A
Yes

Flash

Yes Dual-color LED Flash
Yes LED Flash
Yes LED Flash

Image Resolution

4616 x 3464 Pixels
3264 x 2448 Pixels
N/A

Settings

Exposure compensation ISO control
Exposure compensation
N/A

Shooting Modes

Continuous Shooting
High Dynamic Range mode (HDR)
Continuous Shooting
Continuous Shooting
High Dynamic Range mode (HDR)
Macro Mode

Camera Features

Digital Zoom
Auto Flash
Face detection
Touch to focus
Digital Zoom
Auto Flash
Face detection
Touch to focus
Digital Zoom
Optical Zoom
Face detection
Filters
Smile detection

Video Recording

N/A
N/A
4k @30/60 fps
Full HD @30/60/120/240 fps

Video Recording Features

N/A
N/A
Dual Video Recording
Slow Motion
Video HDR
Macro Video
Audio Zoom

Front Camera

Front Camera Rating

Good
Below Avg
Best In Class

Resolution

8 MP
f/2.0 Primary Camera
2 MP
Primary Camera
50 MP
f/1.9 Primary Camera1.28µm pixel size

Autofocus

N/A
N/A
Yes

Flash

N/A
No
Yes Screen flash

Camera Features

N/A
Fixed Focus
N/A

Video Recording

N/A
N/A
4k @30/60 fps
Full HD @30/60 fps

Battery

Battery Rating

Excellent
Excellent
Excellent

Capacity

4700 mAh
4000 mAh
6500 mAh

Battery Type

Li-Polymer
Li-ion
Silicon Carbon

Quick Charging

Yes Fast Charging v2.0
N/A
Yes 90W Turbo Power Charging

Wireless Charging

N/A
N/A
Yes 15W Wireless Charging

Wireless Reverse Charging

N/A
N/A
N/A

Reverse Charging

N/A
N/A
Yes 5W Wired Reverse Charging

Storage

Internal Storage

64 GB
16 GB
256 GB

Storage Type

N/A
N/A
UFS 4.1

Expandable Storage

Yes Up to 256 GB
Yes Up to 128 GB
No

Network & Connectivity

SIM Slot(s)

Dual SIM
Single SIM
Dual SIM

SIM Type

SIM1: Nano SIM2: Nano
SIM1: Nano
SIM1: Nano SIM2: Nano

Network Support

5G Not Supported 4G
5G Not Supported 4G
5G 4G

VoLTE

N/A
N/A
No

SIM 1

4G Bands:
TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 1900(band 39)
FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 17) / 850(band 19) / 800(band 20)
4G Bands:
FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 1900(band 2) / 850(band 5) / 800(band 20)
5G Bands:
FDD N1 / N2 / N3 / N5 / N8 / N12 / N20 / N25 / N26 / N28 / N66
TDD N38 / N40 / N41 / N48 / N77 / N78
N/A
N/A
4G Bands:
TD-LTE 3500(band 48) / 2600(band 38) / 2300(band 40) / 2500(band 41) / 2100(band 34) / 3500(band 42)
FD-LTE 1700(band 66) / 2100(band 1) / 1800(band 3) / 900(band 8) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 17) / 850(band 18) / 850(band 19) / 800(band 20) / 1900(band 25) / 850(band 26)
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SIM 2

4G Bands:
TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 1900(band 39)
FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 17) / 850(band 19) / 800(band 20)
N/A
5G Bands:
FDD N1 / N2 / N3 / N5 / N8 / N12 / N20 / N25 / N26 / N28 / N66
TDD N38 / N40 / N41 / N48 / N77 / N78
N/A
N/A
4G Bands:
TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 2100(band 34) / 3500(band 42) / 3500(band 48)
FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 12) / 700(band 17) / 850(band 18) / 850(band 19) / 800(band 20) / 1900(band 25) / 850(band 26) / 1700(band 66)
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Wi-Fi

Yes Wi-Fi
Yes Wi-Fi 4 (802.11 b/g/n)
Yes Wi-Fi 7 (802.11 a/b/g/n/ac/be/ax) 6GHz

Wi-Fi Features

N/A
Mobile Hotspot
Mobile Hotspot

Bluetooth

Yes v4.1
Yes v4.1
Yes v5.4

GPS

Yes with A-GPS Glonass
Yes with A-GPS Glonass
Yes with A-GPS Glonass

NFC

Yes
No
Yes

IR Blaster

N/A
N/A
No

Multimedia

Stereo Speakers

N/A
N/A
Yes

Audio Jack

N/A
3.5 mm
USB Type-C

Audio Features

N/A
N/A
Dolby Atmos

Sensors

Fingerprint Sensor

Yes
No
Yes

Fingerprint Sensor Position

Front
N/A
On-screen

Fingerprint Sensor Type

N/A
N/A
Optical

Other Sensors

Light sensor Proximity sensor Accelerometer Barometer Compass Gyroscope
Light sensor Proximity sensor Accelerometer
Light sensor Proximity sensor Accelerometer Compass Gyroscope

Compare Prices

Not Available in any store
Not Available in any store
₹44,999