Samsung Galaxy Z Flip4 vs Xiaomi Redmi K40 Gaming

Samsung Galaxy Z Flip4

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 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, 13, 14, 17, 18, 19, 20, 25, 28, 29, 34, 38, 39, 40, 41, 66

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, 20, 41, 77, 78, 79, 81 SA/NSA/Sub6/mmWave

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 (6CA)

LTE-A
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Plastic front (opened), glass back (Gorilla Glass Victus+), aluminum frame

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

Nano-SIM, eSIM

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

84.9 mm

161.9 mm
Width

71.9 mm

76.9 mm
Thickness

15.9-17.1 mm

8.3 mm
Height unfolded

165.2 mm

-
Width unfolded

71.9 mm

-
Thickness unfolded

6.9 mm

-
Weight

187 g

205 g
Payment

Samsung Pay (Visa, MasterCard certified)

-
Waterproof

IPX8, 1.5m and 30 minutes

IP53
Dust proof

-

IP53
Build features

-

Physical pop-up gaming triggers
Colors

Blue, Pink Gold, Graphite, Khaki, Navy, Purple, Red, Yellow

Black, Gray, Silver, Yellow

Display
Display type

Foldable Dynamic AMOLED 2X

OLED
Physical size

6.7 inches

6.67 inches
Resolution

1080 x 2640 pixels

1080 x 2400 pixels
Pixel density

426 ppi

395 ppi
Display colors

16777216

1073741824
Protection

-

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

120Hz, HDR10+, 1200 nits (peak)

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

Super AMOLED

-
Cover display physical size

1.9 inches

-
Cover display resolution

260 x 512 pixels

-

Main camera
Camera type

Dual

Triple
Main camera

(wide) , 12 MP, f/1.8 , 83˚ , 24 mm, 1.8 µm, 10x digital zoom

(wide) , 64 MP, f/1.7 , 26 mm, 0.7 µm, 1/2"
(ultrawide) , 12 MP, f/2.2 , 123˚ , 1.12 µm

(ultrawide) , 8 MP, f/2.2 , 120˚
(macro) , 2 MP, f/2.4
Primary camera resolution

4032 x 3024 pixels

9280 x 6920 pixels
Primary camera video

4K@30/60fps, 1080p@60/240fps, 720p@960fps, HDR10+

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

LED flash

dual-LED flash
Camera features

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

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

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 2.0

Type-C 2.0
USB On-The-Go

Yes

Yes
Bluetooth

v5.2

v5.2
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Infrared

-

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
NavIC

-

Yes

Features
Sensors

Accelerometer, barometer, compass, fingerprint, gyroscope, proximity

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

Battery
Battery type

Li-Po

Li-Po
Battery capacity

3700 mAh

5065 mAh
Battery removable

Non-removable

Non-removable
Fast battery charging

Quick Charge, 25W (50% in 30 min)

Quick Charge 3+ (100% in 42 min)
Wireless reverse charging

Yes, 4.5W

-
Fast wireless charging

Qi, 15W

-

Samsung Galaxy Z Flip4 comparisons