Xiaomi 12X vs OnePlus 15T

63 out 100

VS

92 out 100

Compared 2 smartphones : Xiaomi 12X Manufactured in December, 2021, with display 6.28 with chipsetQualcomm Snapdragon 870, vs OnePlus 15T, Manufactured in March, 2026 with chipsetQualcomm Snapdragon 8 Elite Gen 5. Below are specs, tests, pros and cons for each device

Key Differences

Device key advantages

Reasons to choose Xiaomi 12X

Lighter design: 176g vs 194g
Supports Dolby Atmos

Reasons to choose OnePlus 15T

Larger display: 6.32in
Higher pixel density: 460ppi
Higher refresh rate: 165Hz
Higher battery capacity: 7500mAh vs 4500mAh
Newer Bluetooth version: 6.0 vs 5.1
Supports DisplayPort
Built-in eSIM

Versions

Available versions and configurations

Memory Options

- 8/128 GB
- 8/256 GB
- 12/256 GB

- 12/256 GB
- 12/512 GB
- 16/256 GB
- 16/512 GB
- 16/1024 GB

Review

Key Specs Xiaomi 12X and OnePlus 15T

Display

Color accuracy, sharpness & brightness

Xiaomi 12X

78

OnePlus 15T

93

Camera

Main & front camera tests

Xiaomi 12X

60

OnePlus 15T

89

Performance

App & system performance

Xiaomi 12X

52

OnePlus 15T

98

Games

3D gaming performance

Xiaomi 12X

39

OnePlus 15T

95

Battery

Battery life, charging speed & type

Xiaomi 12X

72

OnePlus 15T

95

Connectivity

Connectivity features

Xiaomi 12X

73

OnePlus 15T

92

NanoReview Score

Overall score by NanoReview

Xiaomi 12X

63

OnePlus 15T

92

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Function

Importance (Weight)

Display:

Camera:

Performance:

Gaming:

Battery:

Connectivity:

Higher weight means greater impact on NanoReview score.

Display

Display quality comparison

Type	AMOLED	AMOLED
Size	6.28 in	6.32 in
Resolution	1080x2400 pixels	1216x2640 pixels
Aspect ratio	20:9	19.5:9
Pixel density	419 ppi	460 ppi
Refresh rate	120 Hz	165 Hz
Adaptive refresh rate	Yes	Yes (60-165 Hz)
Max brightness	500 nits	1800 nits
HDR support	Yes HDR10+	Yes, Dolby Vision
Touch Sampling Rate	480 Hz	330 Hz
Screen-to-body ratio	89.3 %	90.7 %
Features	- DCI-P3 - Always-On Display - DC dimming	- DCI-P3 - Always-On Display - DC dimming

Peak brightness (auto)

Xiaomi 12X

924 nits

OnePlus 15T

1103 nits

sRGB gamut	98.6 %	99.9 %
PWM (Flicker)	523 Hz	120 Hz
Response time	1 ms	6 ms
Contrast	∞ Infinite	∞ Infinite

Sources: NotebookCheck [Xiaomi 12X], [OnePlus 15T]

Design & Build

Design and ergonomics comparison

Height	152.7 mm (6.01 in)	150.56 mm (5.93 in)
Width	69.9 mm (2.75 in)	71.82 mm (2.83 in)
Thickness	8.16 mm (0.32 in)	8.35 mm (0.33 in)
Weight	176 g (6.21 oz)	194 g (6.84 oz)
Water resistance	No	IP69
Cooling system	n/a	Vapor chamber
Back panel	Glass	Plastic
Frame	Metal	Metal
Colors	- Black - Blue - Pink	- White - Green - Brown
Fingerprint sensor	Yes In-Display	Yes, In-Display

Screen-to-body ratio

Xiaomi 12X

89.3 %

OnePlus 15T

90.7 %

Performance

Testing Xiaomi 12X and OnePlus 15T In benchmarks

Chipset	Qualcomm Snapdragon 870	Qualcomm Snapdragon 8 Elite Gen 5
Max Frequency	3200 MHz	4608 MHz
CPU Cores	8 (1 + 3 + 4)	8 (2 + 6)
Architecture	- 4/1.8 (Kryo 585 Silver (Cortex-A55)) - 3/2.42 (Kryo 585 Gold (Cortex-A77)) - 1/3.2 (Kryo 585 Prime (Cortex-A77))	- 6/3.63 (Oryon Gen 3 Performance) - 2/4.61 (Oryon Gen 3 Prime)
Process	TSMC	TSMC
Transistor Size	7 nm	3 nm
Neural Processor	Hexagon 698	Hexagon
Graphics	Adreno 650	n/a
GPU Cores	768	n/a
GPU Frequency	670 MHz	n/a
FLOPS	1029.1 GFLOPS	n/a

Geekbench 6 (Single-Core)

Xiaomi 12X

1297

OnePlus 15T

3640

Geekbench 6 (Multi-Core)

Xiaomi 12X

3428

OnePlus 15T

11033

Geekbench 6 (Single-Core)	1297	3640
Geekbench 6 (Multi-Core)	3428	11033

Sources: Geekbench v6 [Xiaomi 12X], [OnePlus 15T]

AnTuTu 10

Xiaomi 12X

806389

OnePlus 15T

3676955

CPU	237508	1052960
GPU	235693	1369637
Memory	153330	479431
UX	179858	774927
NanoReview Score	806389	3676955

3DMark Wild Life

Xiaomi 12X

4251

OnePlus 15T

n/a

Max Surface Temp.	37.6 °C	n/a
Stability	98 %	n/a
Graphics Test	25 fps	n/a
Graphics Score	4251	n/a

Sources: 3DMark [Xiaomi 12X]

Memory

RAM Size	- 8 GB - 12 GB	12 GB
Memory Type	LPDDR5	LPDDR5X
Memory Frequency	n/a	5300 MHz
Channels	2	4

Storage Capacity	- 128 GB - 256 GB	256 GB
Storage Type	UFS 3.1	UFS 4.1
Memory Card	No	No

Software

OS	Android 11 (Upgradeable to Android 13)	Android 16
OS Size	29.3 GB	57 GB
UI Skin	HyperOS 1.0	ColorOS 16

Battery

Volume	4500 mAh	7500 mAh
Max Charging Power	67 W	100 W
Battery Type	Li-Po	Silicon Carbon (Si/C)
Removable	No	No
Wireless Charging	No	Yes (50 W)
Reverse Charging	No	Yes
Fast Charging	Yes (78% in 30 min)	Yes (61% in 30 min)
Full Charge Time	0:48 h	0:46 h

Battery Life

Xiaomi 12X

22:44

OnePlus 15T

n/a

Web Browsing	09:35 h	n/a
Video Playback	14:39 h	n/a
Games	05:35 h	n/a
Standby Mode	101 h	n/a

Main camera

Matrix	50 MP	50 MP
Photo resolution	8700x5800 pixels	8192x6144 pixels
Zoom	Digital	Optical, 3.5x
Flash	Dual LED	Dual LED
Stabilization	Optical	Optical
8K Recording	Up to 24FPS	Yes (Up to 30 fps)
4K Recording	Yes (Up to 60 fps)	Yes (Up to 120 fps)
1080p Recording	Yes (Up to 60 fps)	Yes (Up to 120 fps)
Slow Motion	960 fps (720p)	480 fps (720p)
Wide-angle lens	123 °	n/a
Lenses count	Standard: 50 MP Ultra-wide: 13 MP Macro: 5 MP	Standard: 50 MP Telephoto: 50 MP
Features	- Bokeh effect - Pro mode	- Bokeh effect - Pro mode - RAW support

Matrix	50 MP	50 MP
Aperture	f/1.9	f/1.8
Focal length	26 mm	24 mm
Sensor	Sony IMX766	Sony IMX906
Sensor size	1/1.56	1/1.56 (0.64)
Pixel size	1 μm	1 μm
Autofocus	Phase autofocus (Dual Pixel)	Phase autofocus
Stabilization	Optical	Optical

Matrix	n/a	50 MP
Aperture	n/a	f/2.8
Focal length	n/a	85 mm
Sensor	n/a	Samsung S5KJN5
Sensor size	n/a	1/2.76 (0.36)
Pixel size	n/a	0.64 μm
Stabilization	n/a	Optical

Matrix	13 MP	n/a
Aperture	f/2.4	n/a
Focal length	12 mm	n/a
Sensor	OmniVision OV13B10	n/a
Sensor size	1/3.06	n/a
Pixel size	1.12 μm	n/a
Stabilization	Digital	n/a

Front camera

Matrix	32 MP	16 MP
Photo resolution	6528x4896 pixels	n/a
Aperture	f/2.4	f/2.4
Focal length	26 mm	23 mm
Sensor	OmniVision OV32B40	CMOS
Sensor size	1/3	n/a
Pixel size	0.7 μm	1 μm
Autofocus	No	No
Stabilization	Digital	Digital
Video resolution	1080p (Full HD) at 60 fps	1080p (Full HD) at 30 fps
TOF 3D sensor	No	No

Connectivity

Wi-Fi version	Wi-Fi 6 (802.11 a/b/g/n/ac/ax)	Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be)
Wi-Fi features	- Dual Band - Wi-Fi MiMO - Wi-Fi Direct - Wi-Fi Hotspot - Wi-Fi Display	- Dual Band - Wi-Fi MiMO - Wi-Fi Direct - Wi-Fi Hotspot - Wi-Fi Display
Bluetooth version	5.1	6.0
Bluetooth features	LE	LE
USB type	USB Type-C	USB Type-C
USB version	2	2
USB features	- Charging - USB Storage Mode - OTG	- Charging - USB Storage Mode - OTG
DisplayPort	n/a	Yes
GPS	- GPS - GLONASS - Beidou - Galileo - NAVIC	- GPS - GLONASS - Beidou - Galileo - QZSS
NFC*	Varies by region	Yes
Infrared Port	Yes	Yes

SIM Count*	2	2
SIM Type	Nano	Nano
SIM Mode	Dual SIM Standby	Dual SIM Standby
eSIM Support *	n/a	Yes
Hybrid Slot	No	No
2G Bands	GSM 850 900 1800 1900 MHz	GSM 850/900/1800MHz
3G Bands	WCDMA B1/2/4/5/6/8/19	WCDMA 1/2/4/5/8
LTE Bands*	LTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B18/B19/B20/B26/B28/B32/B66)	LTE (B1/B2/B3/B4/B5/B7/B8/B18/B19/B26/B28/B34/B38/B39/B40/B41/B42/B43/B48/B66)
5G Support	Yes	Yes

Sound

Speakers	Stereo	n/a
3.5 mm Jack	No	No
FM Radio	No	No
Dolby Atmos	Yes	No

Max Volume

Xiaomi 12X

90.1 dB

OnePlus 15T

81.5 dB

Other

Class	Flagship	Flagship
Announced	December, 2021 yr	March, 2026 yr
Release Date	December, 2021 yr	March, 2026 yr
Launch Price ($)	650	n/a
MSRP ($)	n/a	799
Sensors	- Proximity Sensor - Gyroscope - Accelerometer - Ambient Light Sensor - Compass - Fingerprint sensor	- Proximity Sensor - Gyroscope - Accelerometer - Ambient Light Sensor - Compass - Fingerprint sensor
Charger Included	Yes 67 W	Yes, 100 W

Results

After analyzing the data, we consider OnePlus 15T the clear winner in this comparison.

Survey

Which smartphone would you pick?

Xiaomi 12X

0 (0%)

OnePlus 15T

0 (0%)

Total Votes: 0

Xiaomi 12X vs OnePlus 15T

Key Differences

Versions

Review

Tests & specs

Display

Design & Build

Performance

Memory

Software

Battery

Main camera

Front camera

Connectivity

Sound

Other

Results

Survey

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