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15 vs Redmi K80 Ultra

Realme 15 vs Xiaomi Redmi K80 Ultra

What 15 does better (6) and where Redmi K80 Ultra wins (14) — every spec side by side.

Realme · 202515

9.0Score

6 advantages≈ $320

Xiaomi · 2025Redmi K80 Ultra

9.6Score

14 advantages≈ $330

Higher score

9.4Display9.7

6.7Performance9.3

8.5Camera9.0

9.2Battery9.5

7.4Features9.3

Dimensions

Size comparison

15Redmi K80 Ultra

	15	Redmi K80 Ultra	Difference
Height	163.3 mm	163.1 mm	+0.2 mm
Width	75.9 mm	77.9 mm	−2 mm
Thickness	7.7 mm	8.2 mm	−0.5 mm
Weight	185 g	219 g	−34 g

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

Why is 15 better than Redmi K80 Ultra?

Selfie camera50 MP vs 20 MP2.5×
Peak brightness4,500 nits vs 3,200 nits+41%
4K selfie videoYes · Redmi K80 Ultra: No
Weight185 g vs 219 g+18%
Thickness7.7 mm vs 8.2 mm+6%
Main camera aperturef/1.8 vs f/1.9+6%

Why is Redmi K80 Ultra better than 15?

AnTuTu score909,042 vs 2,926,6683.2×
Geekbench 6 (multi-core)2,916 vs 9,1743.1×
Storage (max)256 GB vs 1,024 GB4×
NFCNo · 15: Yes
RAM12 GB vs 16 GB+33%
Battery capacity7,000 mAh vs 7,410 mAh+6%
Wired charging80 W vs 100 W+25%
CPU frequency2.6 GHz vs 3.63 GHz+40%
Max video4K vs 8K
4K video frame rate30 fps vs 60 fps2×
Pixel density388 ppi vs 447 ppi+15%
Process4 nm vs 3 nm+33%

Specifications

Side by side

Only differences	Realme 15≈ $3209.0	Xiaomi Redmi K80 Ultra≈ $3309.6
Design
Weight	185 g	219 g
Thickness	7.7 mm	8.2 mm
Height	163.3 mm	163.1 mm
Width	75.9 mm	77.9 mm
Frame	Plastic	Aluminium
Back	—	Glass
Ingress protection	IP68	IP68
Water resistance (IPx)	IPx8	IPx8
Glass protection	—	Scratch/drop-resistant glass
Colours	Silk Pink, Suit Titanium	Gray, White, Blue, Green
Display
Screen size	6.8″	6.8″
Panel	AMOLED	OLED
OLED panel	Yes	Yes
Resolution (width)	1,080 px	1,280 px
Resolution (height)	2,392 px	2,772 px
Pixel density	388 ppi	447 ppi
Refresh rate	144 Hz	144 Hz
Peak brightness	4,500 nits	3,200 nits
Screen-to-body ratio	89.5%	90.2%
HDR	Yes	Yes
Performance
Chipset	Mediatek Dimensity 7300+	Mediatek Dimensity 9400+
Chip maker	MediaTek	MediaTek
Process	4 nm	3 nm
CPU cores	8	8
CPU frequency	2.6 GHz	3.63 GHz
GPU	Mali-G615 MC2	Immortalis-G925
AnTuTu score	909,042	2,926,668
Geekbench 6 (multi-core)	2,916	9,174
Memory
RAM	12 GB	16 GB
Storage (max)	256 GB	1,024 GB
Storage (base)	256 GB	256 GB
Storage type	UFS 3.1	UFS 4.1
Memory card slot	No	No
Camera
Main camera	50 MP	50 MP
Main camera aperture	f/1.8	f/1.9
Main sensor size	1/1.95"	1/1.55"
Rear cameras	2	2
Optical stabilisation	Yes	Yes
Ultra-wide camera	Yes	Yes
Telephoto camera	No	No
Max video	4K	8K
4K video frame rate	30 fps	60 fps
Selfie camera	50 MP	20 MP
4K selfie video	Yes	No
Battery
Battery capacity	7,000 mAh	7,410 mAh
Battery type	Si/C	Si/C
Wired charging	80 W	100 W
Charged in 30 min	60%	—
Wireless charging	No	No
Connectivity
5G	Yes	Yes
eSIM	No	No
Dual SIM	Yes	Yes
Wi-Fi standard	Wi-Fi 6	Wi-Fi 7
Bluetooth	5.4	5.4
NFC	No	Yes
USB	USB Type-C 2.0	USB Type-C
USB version	2	—
Infrared port	Yes	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	No	No
Fingerprint sensor	Under display	Under display, ultrasonic
Sensors	Fingerprint (under display, optical), accelerometer, gyro, proximity, compass	Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass
Software
OS at launch	Android 15	Android 15
Platform	Android	Android
Interface	Realme UI 6.0	HyperOS 2