Oppo Find X (128GB) vs Xiaomi 15 (China 256GB/12GB)

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Side by side comparison between Oppo Find X vs Xiaomi 15 phones, differences, pros, cons and full specifications. What's the better?

5/20/2025 5:58 PM, updated: 6/9/2025 11:20 PM

Compare Xiaomi 15 X Oppo Find X (128GB) 03Points

Specifications Compare Models Pictures

6.42"
AMOLED

1080x2340

16
MP

25mp

8GB
RAM

Octa-core

3730
mAh

(Non removable)

33Points Xiaomi 15 (China 256GB/12GB) Compare Oppo Find X X

Specifications Compare Models Pictures

6.36"
AMOLED

1200x2670

50
MP

32mp

12GB
RAM

Octa-core

5400
mAh

(Non removable)

What's the better phone? Xiaomi 15 (China 256GB/12GB)

The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!

3 Advantages Oppo Find X (128GB)	vs	33 Advantages Xiaomi 15 (China 256GB/12GB)
+186 grams (6.51 ounces)3% Lighter	vs	192 grams (6.72 ounces)
+6.42"1% Larger screen	vs	6.36"
+Face unlock 3DAdvantage Sensors help you use the device	vs	Face unlock 2D
2.8GHz 64bit Octa-core (10nm)	vs	+4.32GHz 64bit Octa-core (3nm)92% More powerful processor, you can open your applications faster
8GB LPDDR4X	vs	+12GB LPDDR5X50% More RAM memory. Typically more responsive and better for multitasking.
128GB (110GB available)	vs	+256GB (220GB available)100% More internal storage for applications and files
UFS 2.1	vs	+UFS 4.0Advantage Fastest write and read storage.
9.4 millimeters (0.37 inches)	vs	+8.4 millimeters (0.33 inches)12% Thinner
AMOLED	vs	+LTPO AMOLEDAdvantage LTPO AMOLED display is brighter and more vivid
Not supported	vs	+Dolby Vision/HDR10+Advantage The Dolby Vision/HDR10+ display provides vibrant colors and more details
60Hz	vs	+120Hz100% The display reproduces more frames per second because the frequency (Hertz) is higher, improves fluidity and tires your eyes less.
16 million	vs	+68 billion4249 times More colors on the screen is better quality images and videos
1080x2340 pixels	vs	+1200x2670 pixels27% Higher resolution screen
401 PPI	vs	+460 PPI15% Crisper display of text, images and videos because it has more pixels per inch (ppi)
(dual camera) 16MP + 20MP	vs	+(triple camera) 50MP + 50MP + 50MP3 times Higher resolution main camera
Only digital zoom	vs	+Digital and optical zoomAdvantage The zoom allows for better focus and approach to take pictures
1/2.6" inches	vs	+1/1.31" inches98% The larger sensor camera lets you take photos with better depth.
f/2.0 (aperture)	vs	+f/1.6 (aperture)25% Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
(front) 25MP	vs	+(front) 32MP28% Higher resolution secondary camera to take pictures and selfies
4K UHD (3840x2160)	vs	+8K UHD (7680x4320)3 times More image quality for recording videos with the primary camera
(front) Full HD (1920x1080)	vs	+(front) 4K UHD (3840x2160)3 times More image quality for recording videos with the secondary camera
Android 10	vs	+Android 15Advantage Android 15 is newer and safer
4G LTE-A	vs	+5G Sub6Advantage The 5G Sub6 network is newer and faster
(4G LTE-A) 1024 Mbps	vs	+(5G Sub6) 3000 Mbps193% Faster for surfing the internet and download files
Not supported	vs	+BarometerAdvantage Sensors help you use the device
Not supported	vs	+Fingerprint sensor (under display)Advantage Sensors help you use the device
3730 mAh	vs	+5400 mAh45% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
20W	vs	+90W4 times More power (watts) to charge the battery faster. Sometimes, the charger that comes with the device doesn't have the same power supported by the device. Check before you buy it.
Not supported	vs	+Qi Wireless charging (Qi/WPC)Advantage Wireless charging is another way to charge the battery.
2 slots (Dual-SIM)	vs	+2 slots (Dual-SIM) + e-SIM (Eletronic)Advantage You can have more mobile carriers/operators on the same device.
Mono sound (not stereo)	vs	+Stereo soundAdvantage Better sound quality for listening to music or clearer hands-free calls
2 microphones	vs	+4 microphones100% More noise-canceling microphones allow for better quality in calls and audio for recorded videos
802.11 a/b/g/n/ac [wifi5]	vs	+802.11 a/b/g/n/ac/ax/be [wifi7/6E/6]Advantage WiFi 802.11 a/b/g/n/ac/ax/be [wifi7/6E/6] is newer and faster
5.0 + A2DP/LE	vs	+6.0 + A2DP/LEAdvantage Bluetooth 6.0 + A2DP/LE is newer and faster
USB 2.0 Type-C, USB OTG On-The-Go	vs	+USB 3.2 Type-C, USB OTG On-The-GoAdvantage Newer and faster USB version for transferring photos, mp3 or data.
Not supported	vs	+IP68 certifiedAdvantage Protection against water allows you talk to your friends in the rain, for example

22 Common items in both devices

Aluminum frame, glass front/back / Aluminum body, glass front

Dual-LED flash

PDAF: phase detection autofocus

OIS: Optical stabilization

BSI sensor

HDR photo on both cameras / HDR photo/video on both cameras

Capacitive

+15 specs and more in the table below

Check the comparison table below for more items that are not evaluated in comparison score above.

Highlight differences

📱 Model features
	Oppo Find X (128GB)	Xiaomi 15 (China 256GB/12GB)
Change model		Choose the model
Model	Find X (128GB)	Xiaomi 15 (China 256GB/12GB)
Other model names	BBK Oppo Find X PAFM00, PAFT00	Xiaomi 15 24129PN74C
Country or region available	(Global, International), China, Hong Kong	China
Brand	Oppo	Xiaomi
Release date	7/1/2018	10/29/2024
Depth	9.4 millimeters (0.37 inches)	8.4 millimeters (0.33 inches)
Size (width x height)	74.2 x 156.7 millimeters (2.92 x 6.17 in)	71.2 x 152.3 millimeters (2.8 x 6 in)
Weight	186 grams (6.51 ounces)	192 grams (6.72 ounces)
Build, materials	Aluminum frame, glass front/back Back: Gorilla Glass 5	Aluminum body, glass front
Protection against water and others	Not supported	IP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant
📲 Display
	Oppo Find X (128GB)	Xiaomi 15 (China 256GB/12GB)
Display type	AMOLED	LTPO AMOLED
Screen size	6.42" inches	6.36" inches
Screen-to-body ratio	~87% (screen-to-body ratio)	~90% (screen-to-body ratio)
Display resolution	1080x2340 pixels (19.5:9)	1200x2670 pixels (20:9)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch 10-points
Pixel density (dot pitch)	401 PPI	460 PPI
Colors	16 million	68 billion
Scratch-resistant glass	Gorilla Glass 5	Dragon Crystal Glass
Refresh rate	60Hz	120Hz
Display features	Not supported	3200nits[peak] Dolby Vision/HDR10+ Touch Sampling Rate: 300Hz
🤖 Operating System
	Oppo Find X (128GB)	Xiaomi 15 (China 256GB/12GB)
System version	Android 8.1 Oreo	Android 15
Firmware update	Android 10	feature not registered
User Interface	ColorOS 5.1 / 7.0	HyperOS 2
⚙️ Processor
	Oppo Find X (128GB)	Xiaomi 15 (China 256GB/12GB)
Chipset	64bit: Qualcomm Snapdragon 845 (SDM845) (10nm)	64bit: Qualcomm Snapdragon 8 Elite (SM8750-AB) (3nm)
CPU	Octa-core, 2 processors: 4x 2.8GHz Kryo 385 Gold (Quad-core) 4x 1.7GHz Kryo 385 Silver (Quad-core)	Octa-core, 2 processors: 2x 4.32GHz Oryon V2 Phoenix L (Dual-core) 6x 3.53GHz Oryon V2 Phoenix M (Hexa-core)
GPU graphical controller	Qualcomm Adreno 630 (710MHz)	Qualcomm Adreno 830 (1100MHz)
Performance (benchmark)	feature not registered	AnTuTu: 2534643 (v10) Geekbench: 9419 (v6)
💽 Memory and storage
	Oppo Find X (128GB)	Xiaomi 15 (China 256GB/12GB)
RAM memory	8GB LPDDR4X	12GB LPDDR5X
Internal storage	128GB (110GB available) UFS 2.1	256GB (220GB available) UFS 4.0
External storage	Not supported	Not supported
📶 Mobile networks
	Oppo Find X (128GB)	Xiaomi 15 (China 256GB/12GB)
Dual-SIM	Dual-SIM Standby - Call active on one sim card	Dual-SIM Standby - Call active on one sim card
SIM card	2 slots (Dual-SIM) nano-SIM (4FF)	2 slots (Dual-SIM) nano-SIM (4FF) + e-SIM
Maximum Download / Upload	1024/150 Mbps	3000/1024 Mbps
Network technology	2G, 3G, 4G	2G, 3G, 4G, 5G
Frequency, bands	Expand band details Collapse details
GSM MHz band	Quad-Band 850/900/1800/1900	Quad-Band 850/900/1800/1900
Primary 2G network	CDMA 800, GSM 850/900/1800/1900	GSM 850/900/1800/1900
Primary 3G network	CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 850/900/1700/1900/2100	UMTS 850/900/1700/1900/2100
Primary 4G network	LTE Cat16 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 29, 32, 66) TD-LTE (34, 38, 39, 40, 41)	LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 66) TD-LTE (34, 38, 39, 40, 41, 42, 48) VoLTE
Primary 5G network	Not supported	SA/NSA/Sub6 (1, 2, 3, 5, 12, 20, 26, 28, 38, 40, 41, 48, 66, 77, 78, 80, 81, 83, 84, 89)
Primary data network	GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6
Secondary 2G network	GSM 850/900/1800/1900	GSM 850/900/1800/1900
Secondary 3G network	Not supported	UMTS 850/900/1700/1900/2100
Secondary 4G network	Not supported	LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 66) TD-LTE (34, 38, 39, 40, 41, 42, 48) VoLTE
Secondary data network	GPRS, EDGE	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6
📷 Camera
	Oppo Find X (128GB)	Xiaomi 15 (China 256GB/12GB)
Back camera (main camera)	(dual camera) 16 megapixels 20MP f/2.01/2.8"1.0µm	(triple camera) 50 megapixels 50MP telephoto f/2.060mm1/2.76"0.64µmPDAFOIS2.6x-optical-zoom 50MP ultrawide f/2.214mm115°1/2.76"0.64µm
Main camera resolution	4608x3456 pixels	8160x6120 pixels
Video recording (primary)	4K UHD (3840x2160) 30 fps	8K UHD (7680x4320) 30 fps
Flash	Dual-LED flash	Dual-LED flash
Focal aperture	f/2.0 (aperture)	f/1.6 (aperture)
Focal length	feature not registered	23mm (lens)
Sensor size	1/2.6" inches	1/1.31" inches
Pixel size	1.22µm pixel	1.2µm pixel
Autofocus	PDAF: phase detection autofocus	PDAF: phase detection autofocus
Touch focus	Supported	Supported
Image stabilization	OIS: Optical stabilization	OIS: Optical stabilization
Zoom	Only digital zoom	Digital and optical zoom
Face/smile detection	Face detection, Smile detection	Face detection, Smile detection
BSI sensor	Supported	Supported
HDR	HDR photo on both cameras	HDR photo/video on both cameras
Camera extras	feature not registered	8K@24/30fps (HDR) 4K@24/30/60fps (HDR10+, 10-bit Dolby Vision HDR, 10-bit LOG) 1080p@30/60/120/240/960fps 720p@1920fps Leica Summilux
📸 Front camera
	Oppo Find X (128GB)	Xiaomi 15 (China 256GB/12GB)
Front camera (secondary)	25 megapixels *Motorized pop-up camera (slider)	32 megapixels
Front camera resolution	5760x4320 pixels	6528x4896 pixels
Video recording (secondary)	Full HD (1920x1080)	4K UHD (3840x2160)
Front flash	Not supported	Not supported
Focal aperture	f/2.0 (aperture)	f/2.0 (aperture)
Focal length	feature not registered	21mm (lens)
Sensor size	feature not registered	1/3.14" inches
Pixel size	feature not registered	0.7µm pixel
🔉 Sound and multimedia
	Oppo Find X (128GB)	Xiaomi 15 (China 256GB/12GB)
Loudspeaker	Mono sound (not stereo)	Stereo sound 24-bit/192kHz Dolby Atmos Hi-Res
Active noise cancellation	2 microphones	4 microphones
Radio	Not supported	Not supported
TV	Not supported	Not supported
Video formats	MP4, H.265, H.264, H.263, DivX, XviD	MP4, H.265, H.264, H.263, XviD, MKV
Audio formats	MP3, OGG, eAAC+, FLAC	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	Oppo Find X (128GB)	Xiaomi 15 (China 256GB/12GB)
USB	USB 2.0 Type-C, USB OTG On-The-Go	USB 3.2 Type-C, USB OTG On-The-Go
Audio output	Type-C reversible connector	Type-C reversible connector
TV output	USB Type-C (reversible)	USB Type-C (reversible)
Bluetooth	5.0 + A2DP/LE	6.0 + A2DP/LE
WiFi	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot	802.11 a/b/g/n/ac/ax/be [wifi7/6E/6] (2.4GHz, 5GHz, 6GHz) + MIMO WiFi Direct, hotspot
DLNA	Not supported	Not supported
GPS	A-GPS, GeoTagging, GLONASS, BeiDou	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS
NFC	Supported	Supported
Infrared port	Not supported	Supported
🧭 Sensors
	Oppo Find X (128GB)	Xiaomi 15 (China 256GB/12GB)
Sensors	Accelerometer Ambient light sensor Compass Face unlock 3D Gyroscope Hall effect Proximity sensor	Accelerometer Ambient light sensor Barometer Compass Face unlock 2D Fingerprint sensor (under display) Gyroscope Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Oppo Find X (128GB)	Xiaomi 15 (China 256GB/12GB)
Battery type	LiPo: li-ion polymer (Non removable)	Li-Si: lithium-silicon (Non removable)
Battery capacity	3730 mAh	5400 mAh
Charger, watts	20W Wired fast charging VOOC 3.0	90W Wired fast charging Reverse charging by cable Quick Charge 3+ USB Power Delivery 3.0
Inductive / wireless charging	Not supported	50W Qi Wireless charging (Qi/WPC) 10W Reverse wireless charging
Talk time autonomy	feature not registered	feature not registered
Standby	feature not registered	feature not registered
➕ Other features
	Oppo Find X (128GB)	Xiaomi 15 (China 256GB/12GB)
Call control	Voice dialing, Voice recorder	Voice dialing, Voice recorder, Voice commands
Messaging	SMS (T9), MMS, E-mail, Push mail	SMS (T9), MMS, E-mail, Push mail
Hands-free calling	Supported	Supported
Video calling	Supported	Supported
Ringtones	Polyphonic and customized	Polyphonic and customized
Web browser	HTML, XHTML, HTML5	HTML, XHTML, HTML5
Antenna	Internal antenna	Internal antenna
Qwerty physical keyboard	Not supported	Not supported
Miscellaneous	• Colors: Bordeaux Red, Glacier Blue	• Colors: Black, White, Green, Lilac, Liquid Silver • Xiaomi HyperAI
☢️ Radiation rate
	Oppo Find X (128GB)	Xiaomi 15 (China 256GB/12GB)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	feature not registered
SAR 2W/kg (Europe, UK, etc.)	feature not registered	0.99W/kg (head), 1W/kg (body)