Xiaomi Mix Fold 3 vs Xiaomi Redmi K40 Gaming

Network
2G network

GSM 850, 900, 1800, 1900; CDMA 800, 1900

GSM 850, 900, 1800, 1900; CDMA 800
3G network

HSDPA 800, 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1xEV-DO

HSDPA 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1x
4G network

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 26, 34, 38, 39, 40, 41, 42

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 18, 19, 26, 34, 38, 39, 40, 41, 42
5G network

5G band 1, 3, 5, 8, 28, 38, 40, 41, 77, 78, 79 SA/NSA

5G band 1, 3, 28, 41, 77, 78 SA/NSA/Sub6
HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
LTE speed

LTE-A (CA)

LTE-A
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Glass front (folded), plastic front (unfolded), glass back or aramid fiber back, aluminum frame

Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5)
SIM

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

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

161.2 mm

161.9 mm
Width

73.5 mm

76.9 mm
Thickness

10.9 mm

8.3 mm
Height unfolded

161.2 mm

-
Width unfolded

143.3 mm

-
Thickness unfolded

5.3 mm

-
Weight

255/259 g

205 g
Waterproof

-

IP53
Dust proof

-

IP53
Build features

-

Physical pop-up gaming triggers
Colors

Black, Gold

Black, Gray, Silver, Yellow

Display
Display type

Foldable LTPO OLED+

OLED
Physical size

8.03 inches

6.67 inches
Resolution

1916 x 2160 pixels

1080 x 2400 pixels
Pixel density

360 ppi

395 ppi
Display colors

1073741824

1073741824
Protection

UTG glass, Corning Gorilla Glass Victus 2

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

120Hz, HDR10+, Dolby Vision, 1300 nits (peak)

120Hz, HDR10+, 500 nits (typ)
Cover display

AMOLED

-
Cover display physical size

6.56 inches

-
Cover display resolution

1080 x 2520 pixels

-
Cover display features

120Hz, HDR10+, Dolby Vision, 2600 nits (peak)

-

Hardware
CPU

Octa-core

Octa-core
CPU

Single-core 3.36 GHz Cortex-X3

Single-core 3.0 GHz Cortex-A78
CPU(second)

dual-core 2.8 GHz Cortex-A715

Triple-core 2.6 GHz Cortex-A78
CPU(third)

Dual-core 2.8 GHz Cortex-A710

Quad-core 2.0 GHz Cortex-A55
CPU(fourth)

Triple-core 2.0 GHz Cortex-A510
Chipset

Qualcomm SM8550-AC Snapdragon 8 Gen 2

MediaTek MT6893 Dimensity 1200 5G
GPU

Adreno 740

Mali-G77 MC9
Memory RAM

12, 16 GB

6, 8, 12 GB
Internal storage

256, 512, 1024 GB

128, 256 GB
Memory card

No

No
Storage

UFS 4.0

UFS 3.1

Main camera
Camera type

Quad

Triple
Main camera

(wide) , 50 MP, f/1.8 , 23 mm, 1/1.49" , 1.0 µm

(wide) , 64 MP, f/1.7 , 26 mm, 1/2" , 0.7 µm
(telephoto) , 10 MP, f/2.0 , 75 mm, 3.2x optical zoom

(ultrawide) , 8 MP, f/2.2 , 120˚
(telephoto) , 10 MP, f/2.9 , 115 mm, 5x optical zoom

(macro) , 2 MP, f/2.4
(ultrawide) , 12 MP, f/2.2 , 120˚ , 15 mm
Primary camera resolution

8190 x 6120 pixels

9280 x 6920 pixels
Primary camera video

8K@24fps, 4K@24/30/60fps, 1080p@30/60/120/240/960/1920fps, Dolby Vision HDR

4K@30fps, 1080p@30/60/120fps, 720p@960fps, HDR
Primary camera flash

LED flash

dual-LED flash
Camera features

Autofocus, continuous autofocus, digital zoom, optical zoom, digital image stabilization, optical image stabilization, geotagging, panorama, HDR, touch focus, face detection, face unlock, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, phase detection autofocus, Dolby Vision, Leica Native Dual Quality, super night 2.0

Autofocus, continuous shooting, digital 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, phase detection autofocus

Connectivity
WLAN

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5GHz, 802.11ac, 802.11ax, 802.11be

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

Yes

Yes
WLAN WiFi Direct

Yes

Yes
WLAN WiFi Dual Band

Yes

Yes
USB

Type-C 3.2

Type-C 2.0
USB On-The-Go

-

Yes
Bluetooth

v5.3

v5.2
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Infrared

Yes

Yes
NFC

Yes

Yes
GPS

Yes, with A-GPS

Yes, with dual-band A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
BDS

Yes

Yes
QZSS

Yes

Yes
NavIC

Yes

Yes

Features
Sensors

Accelerometer, barometer, compass, color spectrum, fingerprint, gyroscope, proximity

Accelerometer, barometer, color spectrum, compass, fingerprint, gyroscope, proximity

Battery
Battery type

Li-Po

Li-Po
Battery capacity

4800 mAh

5065 mAh
Battery removable

Non-removable

Non-removable
Fast battery charging

Quick Charge 4, 67W (100% in 40 min)

Quick Charge 3+ (100% in 42 min)
Fast wireless charging

Yes, 50W (100% in 55 min)

-