Xiaomi 12X vs Realme 15T

63 out 100

VS

66 out 100

Compared 2 smartphones : Xiaomi 12X Manufactured in December, 2021, with display 6.28 with chipsetQualcomm Snapdragon 870, vs Realme 15T, Manufactured in September, 2025with chipsetMediaTek Dimensity 6400 Max. Below are specs, tests, pros and cons for each device

Key Differences

Device key advantages

Reasons to choose Xiaomi 12X

Higher pixel density: 419ppi
Lighter design: 176g vs 181g
Supports Dolby Atmos

Reasons to choose Realme 15T

Larger display: 6.57in
Higher battery capacity: 7000mAh vs 4500mAh
Newer Bluetooth version: 5.3 vs 5.1

Versions

Available versions and configurations

Memory Options

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

- 8/128 GB
- 8/256 GB
- 12/256 GB
- 12/512 GB

Review

Key Specs Xiaomi 12X and Realme 15T

Display

Color accuracy, sharpness & brightness

Xiaomi 12X

78

Realme 15T

85

Camera

Main & front camera tests

Xiaomi 12X

60

Realme 15T

66

Performance

App & system performance

Xiaomi 12X

52

Realme 15T

36

Games

3D gaming performance

Xiaomi 12X

39

Realme 15T

18

Battery

Battery life, charging speed & type

Xiaomi 12X

72

Realme 15T

97

Connectivity

Connectivity features

Xiaomi 12X

73

Realme 15T

68

NanoReview Score

Overall score by NanoReview

Xiaomi 12X

63

Realme 15T

66

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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	6.57 in
Resolution	1080x2400 pixels	1080x2372 pixels
Aspect ratio	20:9	20:9
Pixel density	419 ppi	401 ppi
Refresh rate	120 Hz	120 Hz
Adaptive refresh rate	Yes	Yes (60-120 Hz)
Max brightness	500 nits	4000 nits
HDR support	Yes HDR10+	No
Touch Sampling Rate	480 Hz	240 Hz
Screen-to-body ratio	89.3 %	87.6 %
Features	- DCI-P3 - Always-On Display - DC dimming	- DCI-P3 - Always-On Display - DC dimming

Peak brightness (auto)

Xiaomi 12X

924 nits

Realme 15T

n/a

sRGB gamut	98.6 %	n/a
PWM (Flicker)	523 Hz	n/a
Response time	1 ms	n/a
Contrast	∞ Infinite	n/a

Sources: NotebookCheck [Xiaomi 12X]

Design & Build

Design and ergonomics comparison

Height	152.7 mm (6.01 in)	158.36 mm (6.23 in)
Width	69.9 mm (2.75 in)	75.19 mm (2.96 in)
Thickness	8.16 mm (0.32 in)	7.79 mm (0.31 in)
Weight	176 g (6.21 oz)	181 g (6.38 oz)
Water resistance	No	IP69
Back panel	Glass	Plastic
Frame	Metal	Plastic
Colors	- Black - Blue - Pink	- Silver - Gray - Blue
Fingerprint sensor	Yes In-Display	Yes, In-Display

Screen-to-body ratio

Xiaomi 12X

89.3 %

Realme 15T

87.6 %

Performance

Testing Xiaomi 12X and Realme 15T In benchmarks

Chipset	Qualcomm Snapdragon 870	MediaTek Dimensity 6400 Max
Max Frequency	3200 MHz	2500 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))	- 6/2 (Cortex-A55) - 2/2.5 (Cortex-A76)
Process	TSMC	TSMC
Transistor Size	7 nm	6 nm
Neural Processor	Hexagon 698	Yes
Graphics	Adreno 650	Mali-G57 MP2
GPU Cores	768	64
GPU Frequency	670 MHz	1072 MHz
FLOPS	1029.1 GFLOPS	137.2 GFLOPS

Geekbench 6 (Single-Core)

Xiaomi 12X

1297

Realme 15T

808

Geekbench 6 (Multi-Core)

Xiaomi 12X

3428

Realme 15T

2046

Geekbench 6 (Single-Core)	1297	808
Geekbench 6 (Multi-Core)	3428	2046
Geekbench Compute (GPU)	n/a	1424

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

AnTuTu 10

Xiaomi 12X

806389

Realme 15T

605158

CPU	237508	223513
GPU	235693	48052
Memory	153330	167188
UX	179858	166405
NanoReview Score	806389	605158

3DMark Wild Life

Xiaomi 12X

4251

Realme 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	8 GB
Memory Type	LPDDR5	LPDDR4X
Memory Frequency	n/a	2133 MHz
Channels	2	2

Storage Capacity	- 128 GB - 256 GB	128 GB
Storage Type	UFS 3.1	UFS 2.2
Memory Card	No	MicroSD

Software

OS	Android 11 (Upgradeable to Android 13)	Android 15
OS Size	29.3 GB	n/a
UI Skin	HyperOS 1.0	Realme UI 6.0

Battery

Volume	4500 mAh	7000 mAh
Max Charging Power	67 W	60 W
Battery Type	Li-Po	Silicon Carbon (Si/C)
Removable	No	No
Wireless Charging	No	No
Reverse Charging	No	Yes
Fast Charging	Yes (78% in 30 min)	Yes
Full Charge Time	0:48 h	n/a

Battery Life

Xiaomi 12X

22:44

Realme 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	Digital
Flash	Dual LED	LED
Stabilization	Optical	Optical
8K Recording	Up to 24FPS	No
4K Recording	Yes (Up to 60 fps)	No
1080p Recording	Yes (Up to 60 fps)	Yes (Up to 60 fps)
Slow Motion	960 fps (720p)	120 fps (720p)
Wide-angle lens	123 °	n/a
Lenses count	Standard: 50 MP Ultra-wide: 13 MP Macro: 5 MP	Standard: 50 MP Depth: 2 MP
Features	- Bokeh effect - Pro mode	- Bokeh effect - Pro mode

Matrix	50 MP	50 MP
Aperture	f/1.9	f/1.8
Focal length	26 mm	27 mm
Sensor	Sony IMX766	Omnivision OV50D40 Light Hunter 400
Sensor size	1/1.56	1/2.88
Pixel size	1 μm	0.61 μm
Autofocus	Phase autofocus (Dual Pixel)	Phase autofocus
Stabilization	Optical	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	50 MP
Photo resolution	6528x4896 pixels	8192x6144 pixels
Aperture	f/2.4	f/1.8
Focal length	26 mm	27 mm
Sensor	OmniVision OV32B40	Omnivision OV50D40 Light Hunter 400
Sensor size	1/3	1/2.88
Pixel size	0.7 μm	0.61 μm
Autofocus	No	No
Stabilization	Digital	Digital
Video resolution	1080p (Full HD) at 60 fps	1080p (Full HD) at 60 fps
TOF 3D sensor	No	No

Connectivity

Wi-Fi version	Wi-Fi 6 (802.11 a/b/g/n/ac/ax)	Wi-Fi 5 (802.11 a/b/g/n/ac)
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	5.3
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	No
GPS	- GPS - GLONASS - Beidou - Galileo - NAVIC	- GPS - GLONASS - Beidou - Galileo - QZSS
NFC*	Varies by region	Varies by region
Infrared Port	Yes	Yes

SIM Count*	2	2
SIM Type	Nano	Nano
SIM Mode	Dual SIM Standby	Dual SIM Standby
eSIM Support *	n/a	No
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 1/5/8
LTE Bands*	LTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B18/B19/B20/B26/B28/B32/B66)	LTE (B1/B3/B5/B8/B40/B41)
5G Support	Yes	Yes

Sound

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

Max Volume

Xiaomi 12X

90.1 dB

Realme 15T

n/a

Other

Class	Flagship	Mid-range
Announced	December, 2021 yr	September, 2025 yr
Release Date	December, 2021 yr	September, 2025 yr
Launch Price ($)	650	n/a
MSRP ($)	n/a	230
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, 60 W

Results

No clear favorite identified yet; updates may follow as new data arrives.

Survey

Which smartphone would you pick?

Xiaomi 12X

0 (0%)

Realme 15T

1 (100%)

Total Votes: 1

Xiaomi 12X vs Realme 15T

Key Differences

Versions

Review

Tests & specs

Display

Design & Build

Performance

Memory

Software

Battery

Main camera

Front camera

Connectivity

Sound

Other

Results

Survey

User comments