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K15s vs Redmi Note 15

OPPO K15s vs Xiaomi Redmi Note 15

What K15s does better (4) and where Redmi Note 15 wins (16) — every spec side by side.

OPPO · 2026K15s

8.3Score

4 advantages≈ $290

Xiaomi · 2026Redmi Note 15

8.6Score

16 advantages≈ $280

Higher score

8.2Display8.5

4.6Camera8.6

9.0Battery7.6

7.6Features7.7

Dimensions

Size comparison

K15sRedmi Note 15

	K15s	Redmi Note 15	Difference
Height	159.1 mm	164 mm	−4.9 mm
Width	75.8 mm	75.4 mm	+0.4 mm
Thickness	8.8 mm	7.4 mm	+1.4 mm
Weight	205 g	178 g	+27 g

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

Why is K15s better than Redmi Note 15?

Battery capacity8,000 mAh vs 5,520 mAh+45%
Water resistance (IPx)IPx8 vs IPx6+33%
Pixel density397 ppi vs 388 ppi+2%
Bluetooth5.4 vs 5.1+6%

Why is Redmi Note 15 better than K15s?

Main camera50 MP vs 108 MP2.2×
Peak brightness1,400 nits vs 3,200 nits2.3×
RAM8 GB vs 12 GB+50%
Storage (max)256 GB vs 512 GB2×
Optical stabilisationNo · K15s: Yes
Stereo speakersNo · K15s: Yes
Selfie camera8 MP vs 20 MP2.5×
Rear cameras1 vs 22×
Ultra-wide cameraNo · K15s: Yes
Max video1080p vs 4K
Weight205 g vs 178 g+15%
Screen size6.6″ vs 6.8″+3%

Specifications

Side by side

Only differences	OPPO K15s≈ $2908.3	Xiaomi Redmi Note 15≈ $2808.6
Design
Weight	205 g	178 g
Thickness	8.8 mm	7.4 mm
Height	159.1 mm	164 mm
Width	75.8 mm	75.4 mm
Frame	Plastic	Plastic
Back	Plastic	Plastic
Ingress protection	IP68	IP66
Water resistance (IPx)	IPx8	IPx6
Glass protection	—	Scratch/drop-resistant glass
Colours	Gray, Purple	Black, Glacier Blue, Mist Purple
Display
Screen size	6.6″	6.8″
Panel	AMOLED	AMOLED
OLED panel	Yes	Yes
Resolution (width)	1,080 px	1,080 px
Resolution (height)	2,372 px	2,392 px
Pixel density	397 ppi	388 ppi
Refresh rate	120 Hz	120 Hz
Peak brightness	1,400 nits	3,200 nits
Measured brightness	—	1,524 nits
Screen-to-body ratio	87.1%	89.7%
HDR	—	Yes
Performance
Chipset	Mediatek Dimensity 6360 Max	Qualcomm SM6475-AB Snapdragon 6 Gen 3
Chip maker	MediaTek	Qualcomm
Process	6 nm	4 nm
CPU cores	8	8
CPU frequency	2.4 GHz	2.4 GHz
GPU	Mali-G57 MC2	Adreno 710
AnTuTu score	—	637,266
Geekbench 6 (multi-core)	—	2,958
3DMark Wild Life Extreme	—	861
Memory
RAM	8 GB	12 GB
Storage (max)	256 GB	512 GB
Storage (base)	128 GB	128 GB
Storage type	UFS 2.2	UFS 2.2
Memory card slot	Yes	Yes
Camera
Main camera	50 MP	108 MP
Main camera aperture	f/1.9	f/1.7
Main sensor size	—	1/1.67"
Rear cameras	1	2
Optical stabilisation	No	Yes
Ultra-wide camera	No	Yes
Telephoto camera	No	No
Max video	1080p	4K
4K video frame rate	—	30 fps
Selfie camera	8 MP	20 MP
4K selfie video	No	No
Battery
Battery capacity	8,000 mAh	5,520 mAh
Battery type	Si/C	Si/C
Active use (test)	—	14.2 h
Wired charging	45 W	45 W
Wireless charging	No	No
Connectivity
5G	Yes	Yes
eSIM	No	No
Dual SIM	Yes	Yes
Wi-Fi standard	Wi-Fi 5	Wi-Fi 5
Bluetooth	5.4	5.1
NFC	Yes	Yes
USB	USB Type-C 2.0	USB Type-C 2.0
USB version	2	2
Satellite navigation	GLONASS, GALILEO, BDS, QZSS	GLONASS, GALILEO, BDS
Features
Stereo speakers	No	Yes
3.5 mm headphone jack	No	No
Loudspeaker loudness	—	-23.4 LUFS
Fingerprint sensor	Under display	Under display
Sensors	Fingerprint (under display, optical), accelerometer, gyro, proximity, compass	Fingerprint (under display, optical), accelerometer, gyro, compass
SAR (head)	—	1 W/kg
Software
OS at launch	Android 16	Android 15
Platform	Android	Android
Interface	ColorOS 16	HyperOS 2
Major OS updates promised	—	4
EU label
Energy class	—	B
Battery charge cycles	—	1,000
Endurance per cycle	—	51 h
Repairability class	—	C
Drop resistance class	—	A