Iqoo Z9s vs Karbonn K31

Key Specs

Battery
-	1800 mAh
Display
-	2.4 inches (6.1 cm)
Rear Camera
-	0.3 MP

Audio

Audio Jack
USB Type-C	-
Loudspeaker
Yes	-
Stereo Speakers
Yes	-

Battery

Capacity
5500 mAh	1800 mAh
Quick Charging
Yes, Flash, 44W: 50 % in 30 minutes	-
Removable
No	-
Type
Li-ion	Li-ion
USB Type-C
Yes	-
User Replaceable
-	Yes

Camera

Autofocus
Yes	-
Camera Features
-	Digital Zoom
Camera Setup
-	Single
Flash
Yes, Smart Aura Light	-
Front Camera
16 MP	-
Image Resolution
8150 x 6150 Pixels	640 x 480 Pixels
Rear Camera
50 MP + 2 MP	-
Resolution
-	0.3 MP Primary Camera
Shooting Modes
Continuous Shooting High Dynamic Range mode (HDR) SuperMoon	-
Video Recording
4k @ 30 FPS Full HD @ 30 FPS	-

Design

Colours
Titanium Matte, Onyx Green	Black
Ruggedness
Dust proof	-
Weight
180 grams	-

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Dimensions

Height
163.72 mm	-
Thickness
7.49 mm	-
Width
75 mm	-

Display

Aspect Ratio
20:9	-
Bezel-less display
Yes with punch-hole display	-
Display Type
AMOLED (Curved Display)	TFT
Pixel Density
388 ppi	167 ppi
Refresh Rate
120 Hz	-
Resolution
1080x2392 px (FHD+)	-
Screen Protection
Yes	-
Screen Resolution
-	240 x 320 pixels
Screen Size
6.77 inches (17.2 cm)	2.4 inches (6.1 cm)
Screen to Body Ratio (claimed by the brand)
93.13 %	-

General

Brand
iQOO	Karbonn
Custom UI
Funtouch OS	-
Launch Date
August 29, 2024	August 29, 2017 (Official)
Model
-	K31
Network
-	5G: Not Supported in India, 4G: Not Available, 3G: Not Available, 2G: Available
Operating System
Android v14	-

Multimedia

FM Radio
-	Yes, Recording option, Wireless FM
Fm Radio
-	Yes, Recording option, Wireless FM
Loudspeaker
-	Yes
Music
-	Yes, Music Formats: MP3
Ring Tone
-	Music ringtones, Polyphonic ringtones, Vibration
Special Features
-	Auto Call Recording, Mobile Tracker
Video Player
-	Yes, Video Formats: 3GP, MP4
Video player
-	Yes, Video Formats: 3GP, MP4

Network & Connectivity

Bluetooth
Yes, v5.4	Yes
GPS
Yes with A-GPS, Glonass	-
NFC
No	-
Network Support
5G, 4G, 3G, 2G	5G Not Supported in India, 2G
SIM 1
5G Bands: FDD N1 / N3 / N5 / N8 / N28 TDD N40 / N77 / N78 4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 700(band 28) / 850(band 5) 3G Bands: UMTS 2100 / 850 / 900 MHz 2G Bands: GSM 1800 / 850 / 900 MHz GPRS: Available EDGE: Available	2G Bands: GSM 1800 / 900 MHz GPRS: Available
SIM 2
5G Bands: FDD N1 / N3 / N5 / N8 / N28 TDD N40 / N77 / N78 4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 700(band 28) / 850(band 5) 3G Bands: UMTS 2100 / 850 / 900 MHz 2G Bands: GSM 1800 / 850 / 900 MHz GPRS: Available EDGE: Available	2G Bands: GSM 1800 / 900 MHz
SIM Size
SIM1: Nano, SIM2: Nano	-
SIM Slot(s)
Dual SIM, GSM+GSM	Dual SIM, GSM+GSM
VoLTE
Yes	-
Wi-Fi
Yes, Wi-Fi 6E (802.11 a/b/g/n/ac/ax) 5GHz 6GHz	-

Performance

Graphics
Mali-G615 MC2	-
Processor
MediaTek Dimensity 7300	-

Sensors

Fingerprint Sensor
Yes	-
Other Sensors
Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope	-

Smart TV Features

Camera
-	0.3 MP

Special Features

Browser
-	Yes, WAP
Games
-	Yes
Other Facilities
-	Calculator, Stopwatch, Calendar, Alarm
Phone Book
-	Yes, Limited

Storage

Expandable Memory
No	Yes, Up to 16 GB
Internal Memory
128 GB	-
Storage Type
UFS 2.2	-