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Xperia 1 III vs Redmi K40 Pro

Sony Xperia 1 III vs Xiaomi Redmi K40 Pro

What Xperia 1 III does better (14) and where Redmi K40 Pro wins (9) — every spec side by side.

Sony · 2021Xperia 1 III

8.0Score

14 advantages≈ $370

Higher score

Xiaomi · 2021Redmi K40 Pro

7.8Score

9 advantages≈ $390

7.4Display7.9

9.2Camera8.2

3.8Battery4.2

8.0Features7.0

Dimensions

Size comparison

Xperia 1 IIIRedmi K40 Pro

	Xperia 1 III	Redmi K40 Pro	Difference
Height	165 mm	163.7 mm	+1.3 mm
Width	71 mm	76.4 mm	−5.4 mm
Thickness	8.2 mm	7.8 mm	+0.4 mm
Weight	186 g	196 g	−10 g

Drawn to the same scale from the official dimensions (front and side).

Why is Xperia 1 III better than Redmi K40 Pro?

Storage (max)512 GB vs 256 GB2×
Optical stabilisationYes · Redmi K40 Pro: No
Telephoto cameraYes · Redmi K40 Pro: No
Water resistance (IPx)IPx5 vs IPx3+67%
Pixel density643 ppi vs 395 ppi+63%
Storage (base)256 GB vs 128 GB2×
Memory card slotYes · Redmi K40 Pro: No
4K video frame rate120 fps vs 60 fps2×
3.5 mm headphone jackYes · Redmi K40 Pro: No
Weight186 g vs 196 g+5%
USB version3.1 vs 2+55%
Resolution (width)1,644 px vs 1,080 px+52%

Why is Redmi K40 Pro better than Xperia 1 III?

Main camera12 MP vs 64 MP5.3×
Peak brightness620 nits vs 1,300 nits2.1×
Selfie camera8 MP vs 20 MP2.5×
Wired charging30 W vs 33 W+10%
Max video4K vs 8K
Screen size6.5″ vs 6.7″+3%
Charged in 30 min50% vs 58%+16%
Wi-Fi standardWi-Fi 6 vs Wi-Fi 6E+8%
Thickness8.2 mm vs 7.8 mm+5%

Specifications

Side by side

Only differences	Sony Xperia 1 III≈ $3708.0	Xiaomi Redmi K40 Pro≈ $3907.8
Design
Weight	186 g	196 g
Thickness	8.2 mm	7.8 mm
Height	165 mm	163.7 mm
Width	71 mm	76.4 mm
Frame	Aluminium	—
Back	Glass	—
Ingress protection	IP65	IP53
Water resistance (IPx)	IPx5	IPx3
Glass protection	Corning Gorilla Glass Victus	Corning Gorilla Glass 5
Colours	Frosted Black, Frosted Gray, Frosted Purple	Black, White, Aurora
Display
Screen size	6.5″	6.7″
Panel	OLED	Super AMOLED
OLED panel	Yes	Yes
Resolution (width)	1,644 px	1,080 px
Resolution (height)	3,840 px	2,400 px
Pixel density	643 ppi	395 ppi
Refresh rate	120 Hz	120 Hz
Peak brightness	620 nits	1,300 nits
Measured brightness	620 nits	—
Screen-to-body ratio	84.2%	85.9%
HDR	Yes	Yes
Performance
Chipset	Qualcomm SM8350 Snapdragon 888 5G	Qualcomm SM8350 Snapdragon 888 5G
Chip maker	Qualcomm	Qualcomm
Process	5 nm	5 nm
CPU cores	8	8
CPU frequency	2.84 GHz	2.84 GHz
GPU	Adreno 660	Adreno 660
AnTuTu score	607,423	—
Geekbench 6 (multi-core)	3,515	—
3DMark Wild Life Extreme	1,485	—
Memory
RAM	12 GB	12 GB
Storage (max)	512 GB	256 GB
Storage (base)	256 GB	128 GB
Storage type	UFS 3.	UFS 3.1
Memory card slot	Yes	No
Camera
Main camera	12 MP	64 MP
Main camera aperture	f/1.7	f/1.9
Main sensor size	1/1.7"	1/1.7"
Rear cameras	3	2
Optical stabilisation	Yes	No
Ultra-wide camera	Yes	Yes
Telephoto camera	Yes	No
Optical zoom	4.4×	—
Max video	4K	8K
4K video frame rate	120 fps	60 fps
Selfie camera	8 MP	20 MP
4K selfie video	No	No
Battery
Battery capacity	4,500 mAh	4,520 mAh
Battery type	Li-Po	Li-Po
Wired charging	30 W	33 W
Charged in 30 min	50%	58%
Wireless charging	No	No
Reverse wireless charging	Yes	—
Connectivity
5G	Yes	Yes
eSIM	No	No
Dual SIM	Yes	Yes
Wi-Fi standard	Wi-Fi 6	Wi-Fi 6E
Bluetooth	5.2	5.2
NFC	Yes	Yes
USB	USB Type-C 3.1	USB Type-C 2.0
USB version	3.1	2
Video output	Yes	—
Dual-band GPS	—	Yes
Satellite navigation	GLONASS, GALILEO, BDS, QZSS	GLONASS, GALILEO, BDS, QZSS, NavIC
Features
Stereo speakers	Yes	Yes
3.5 mm headphone jack	Yes	No
Loudspeaker loudness	-26.5 LUFS	—
Fingerprint sensor	Side	Side
Barometer	Yes	Yes
Sensors	Fingerprint (side-mounted), accelerometer, gyro, proximity, barometer, compass	Fingerprint (side-mounted), accelerometer, gyro, proximity, compass, barometer
Software
OS at launch	Android 11	Android 11
Platform	Android	Android
Interface	—	MIUI 12