Xiaomi Mi 8 (64GB) vs Sony Xperia U (ST25i)

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Side by side comparison between Xiaomi Mi 8 vs Sony Xperia U phones, differences, pros, cons and full specifications. What's the better?

6/6/2018 8:52 PM, updated: 11/10/2021 4:36 PM

Compare Sony Xperia U X Xiaomi Mi 8 (64GB) 32Points

Specifications Compare Models Pictures

6.21"
AMOLED

1080x2248

12
MP

20mp

6GB
RAM

Octa-core

3400
mAh

(Non removable)

04Points Sony Xperia U (ST25i) Compare Xiaomi Mi 8 X

Specifications Compare Models Pictures

3.5"
LED

480x854

5
MP

0.3mp

512MB
RAM

Dual-core

1320
mAh

(Removable)

What's the better phone? Xiaomi Mi 8 (64GB)

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!

32 Advantages Xiaomi Mi 8 (64GB)	vs	4 Advantages Sony Xperia U (ST25i)
+2.8GHz 64bit Octa-core4 times More powerful processor, you can open your applications faster	vs	1GHz 32bit Dual-core (45nm)
+6GB LPDDR4X11 times More RAM memory. Typically more responsive and better for multitasking.	vs	512MB LPDDR2
+64GB (51GB available)12 times More internal storage for applications and files	vs	8GB (4GB available)
+7.6 millimeters (0.3 inches)58% Thinner	vs	12 millimeters (0.47 inches)
+Aluminum frame, glass front/backAdvantage More resistant material	vs	Plastic body, glass front
+Super AMOLEDAdvantage Super AMOLED display is brighter and more vivid	vs	TFT LED-Backlit LCD
+HDR10Advantage The HDR10 display provides vibrant colors and more details	vs	Not supported
+1080x2248 pixels5 times Higher resolution screen	vs	480x854 pixels
+402 PPI44% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	280 PPI
+6.21"77% Larger screen	vs	3.5"
+(dual camera) 12MP + 12MP4 times Higher resolution main camera	vs	(back) 5MP
+Dual-LED flashAdvantage The Dual-LED flash helps in dark places or in low light	vs	LED flash
+Digital and optical zoomAdvantage The zoom allows for better focus and approach to take pictures	vs	Only digital zoom
+OIS (4-axis): Optical stabilizationAdvantage Image stabilization prevents blurry photos and helps in recording motion video	vs	EIS: Digital stabilization
+HDR photo on both camerasAdvantage The HDR technology produced photos with more detail in dark areas	vs	Not supported
+(front) 20MP64 times Higher resolution secondary camera to take pictures and selfies	vs	(front) 0.3MP
+4K UHD (3840x2160)8 times More image quality for recording videos with the primary camera	vs	HD (1280x720)
+(front) Full HD (1920x1080)6 times More image quality for recording videos with the secondary camera	vs	(front) VGA (640x480)
+Android 9.0 PieAdvantage Android 9.0 Pie is newer and safer	vs	Android 4.0.4 Ice Cream Sandwich ICS
+4G LTE-AAdvantage The 4G LTE-A network is newer and faster	vs	3G HSUPA
+(4G LTE-A) 1024 Mbps70 times Faster for surfing the internet and download files	vs	(3G HSUPA) 14.4 Mbps
+BarometerAdvantage Sensors help you use the device	vs	Not supported
+Face unlock 2DAdvantage Sensors help you use the device	vs	Not supported
+Fingerprint sensor (rear-mounted)Advantage Sensors help you use the device	vs	Not supported
+GyroscopeAdvantage Sensors help you use the device	vs	Not supported
+3400 mAh158% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use	vs	1320 mAh
+2 slots (Dual-SIM)Advantage You can have more mobile carriers/operators on the same device.	vs	1 slot (Single-SIM)
+802.11 a/b/g/n/ac [wifi5]Advantage WiFi 802.11 a/b/g/n/ac [wifi5] is newer and faster	vs	802.11 b/g/n [wifi4]
+5.0 + A2DP/LEAdvantage Bluetooth 5.0 + A2DP/LE is newer and faster	vs	2.1 + A2DP
+NFCAdvantage NFC allows you to make payments by approach quickly and securely	vs	Not supported
+Type-CAdvantage Reversible connector, you can stick in a USB-C cable any which way; either side is up.	vs	MicroUSB 2.0, USB OTG On-The-Go
+HTML, XHTML, HTML5Advantage Better sites viewing on the internet	vs	HTML, XHTML, Flash player
175 grams (6.13 ounces)	vs	+110 grams (3.85 ounces)59% Lighter
LiPo: li-ion polymer (Non removable)	vs	+Li-Ion: lithium-ion (Removable)Advantage Removable battery can be replaced easily
Type-C jack with 3.5mm jack adapter	vs	+3.5mm jackAdvantage Headsets with 3.5mm Jack size are more common and easy to find in stores
Not supported	vs	+FM (RDS)Advantage The radio lets you listen to your songs and sports in general

17 Common items in both devices

60Hz

16 million

PDAF: phase detection autofocus / Autofocus

Capacitive

Multitouch

Accelerometer

Ambient light sensor

+10 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
	Xiaomi Mi 8 (64GB)	Sony Xperia U (ST25i)
Change model		Choose the model
Model	Xiaomi Mi 8 (64GB)	Xperia U (ST25i)
Other model names	小米8, Xiaomi Mi8 6GB RAM, Xiaomi Dipper	Sony Xperia U ST25, Sony Kumquat
Country or region available	(Global, International), China, Hong Kong	(Global, International)
Brand	Xiaomi	Sony
Release date	6/1/2018	5/7/2012, Announced: 2/1/2012
Depth	7.6 millimeters (0.3 inches)	12 millimeters (0.47 inches)
Size (width x height)	74.8 x 154.9 millimeters (2.94 x 6.1 in)	54 x 112 millimeters (2.13 x 4.41 in)
Weight	175 grams (6.13 ounces)	110 grams (3.85 ounces)
Build, materials	Aluminum frame, glass front/back	Plastic body, glass front
Protection against water and others	Not supported	Not supported
📲 Display
	Xiaomi Mi 8 (64GB)	Sony Xperia U (ST25i)
Display type	Super AMOLED	TFT LED-Backlit LCD
Screen size	6.21" inches	3.5" inches
Screen-to-body ratio	~83.8% (screen-to-body ratio)	~55.8% (screen-to-body ratio)
Display resolution	1080x2248 pixels	480x854 pixels (16:9)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch 4-points
Pixel density (dot pitch)	402 PPI	280 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass 5	Scratch-resistant glass
Refresh rate	60Hz	60Hz
Display features	600nits[typ] HDR10	Not supported
🤖 Operating System
	Xiaomi Mi 8 (64GB)	Sony Xperia U (ST25i)
System version	Android 8.1 Oreo	Android 2.3.7 Gingerbread
Firmware update	Android 9.0 Pie	Android 4.0.4 Ice Cream Sandwich ICS
User Interface	feature not registered	feature not registered
⚙️ Processor
	Xiaomi Mi 8 (64GB)	Sony Xperia U (ST25i)
Chipset	64bit: Qualcomm Snapdragon 845 MSM8998 (10nm)	32bit: ST-Ericsson NovaThor U8500 (45nm)
CPU	Octa-core, 2 processors: 4x 2.8GHz Kryo 385 Gold (Quad-core) 4x 1.8GHz Kryo 385 Silver (Quad-core)	Dual-core, 1 processor: 2x 1GHz ARM Cortex-A9 (Dual-core)
GPU graphical controller	Qualcomm Adreno 630 710Mhz	ARM Mali-400 MP1
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	Xiaomi Mi 8 (64GB)	Sony Xperia U (ST25i)
RAM memory	6GB LPDDR4X	512MB LPDDR2
Internal storage	64GB (51GB available) UFS 2.1	8GB (4GB available)
External storage	Not supported	Not supported
📶 Mobile networks
	Xiaomi Mi 8 (64GB)	Sony Xperia U (ST25i)
Dual-SIM	Dual-SIM Standby - Call active on one sim card	Not supported
SIM card	2 slots (Dual-SIM) nano-SIM (4FF)	1 slot (Single-SIM) Standard mini-SIM (2FF)
Maximum Download / Upload	1024/150 Mbps	14.4/5.76 Mbps
Network technology	2G, 3G, 4G	2G, 3G
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 900/2100
Primary 4G network	LTE Cat16 (1, 2, 3, 4, 5, 7, 8, 12, 17, 20) TD-LTE (34, 38, 39, 40, 41) VoLTE	Not supported
Primary 5G network	Not supported	Not supported
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
Secondary 2G network	GSM 850/900/1800/1900	Not supported
Secondary 3G network	Not supported	Not supported
Secondary 4G network	Not supported	Not supported
Secondary data network	GPRS, EDGE	Not supported
📷 Camera
	Xiaomi Mi 8 (64GB)	Sony Xperia U (ST25i)
Back camera (main camera)	(dual camera) 12 megapixels 12MP telephoto f/2.456mm1/3.4"1.0µmAF2x-optical-zoom	5 megapixels
Main camera resolution	4000x3000 pixels	2592x1944 pixels
Video recording (primary)	4K UHD (3840x2160) 30 fps	HD (1280x720) 30 fps
Flash	Dual-LED flash	LED flash
Focal aperture	f/1.8 (aperture)	feature not registered
Focal length	feature not registered	feature not registered
Sensor size	1/2.55" inches	feature not registered
Pixel size	1.4µm pixel	feature not registered
Autofocus	PDAF: phase detection autofocus	Autofocus
Touch focus	Supported	Supported
Image stabilization	OIS (4-axis): Optical stabilization	EIS: Digital stabilization
Zoom	Digital and optical zoom	Only digital zoom
Face/smile detection	Face detection, Smile detection	Face detection, Smile detection
BSI sensor	Not supported	Not supported
HDR	HDR photo on both cameras	Not supported
Camera extras	feature not registered	feature not registered
📸 Front camera
	Xiaomi Mi 8 (64GB)	Sony Xperia U (ST25i)
Front camera (secondary)	20 megapixels	0.3 megapixels
Front camera resolution	5184x3840 pixels	640x480 pixels
Video recording (secondary)	Full HD (1920x1080)	VGA (640x480)
Front flash	Not supported	Not supported
Focal aperture	f/2.0 (aperture)	feature not registered
Focal length	feature not registered	feature not registered
Sensor size	1/3" inches	feature not registered
Pixel size	1.8µm pixel	feature not registered
🔉 Sound and multimedia
	Xiaomi Mi 8 (64GB)	Sony Xperia U (ST25i)
Loudspeaker	Supported	Supported
Active noise cancellation	2 microphones or more	2 microphones or more
Radio	Not supported	FM (RDS)
TV	Not supported	Not supported
Video formats	MP4, H.265, H.264, H.263, XviD, MKV	MP4, H.263, H.264, WMV
Audio formats	MP3, WAV, WMA, eAAC+, FLAC	MP3, eAAC+, WMA, WAV
🔌 Connectivity
	Xiaomi Mi 8 (64GB)	Sony Xperia U (ST25i)
USB	USB 2.0 Type-C, USB OTG On-The-Go	MicroUSB 2.0, USB OTG On-The-Go
Audio output	Type-C jack with 3.5mm jack adapter	3.5mm jack
TV output	USB Type-C (reversible)	Not supported
Bluetooth	5.0 + A2DP/LE	2.1 + A2DP
WiFi	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot	802.11 b/g/n [wifi4] (2.4GHz)
DLNA	Supported	Supported
GPS	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS	A-GPS, GeoTagging
NFC	Supported	Not supported
Infrared port	Not supported	Not supported
🧭 Sensors
	Xiaomi Mi 8 (64GB)	Sony Xperia U (ST25i)
Sensors	Accelerometer Ambient light sensor Barometer Compass Face unlock 2D Fingerprint sensor (rear-mounted) Gyroscope Hall effect Proximity sensor	Accelerometer Ambient light sensor Compass Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Xiaomi Mi 8 (64GB)	Sony Xperia U (ST25i)
Battery type	LiPo: li-ion polymer (Non removable)	Li-Ion: lithium-ion (Removable) BA600
Battery capacity	3400 mAh	1320 mAh
Charger, watts	18W Wired fast charging Quick Charge 4+	Wired charging
Inductive / wireless charging	Not supported	Not supported
Talk time autonomy	feature not registered	5.6 hours
Standby	feature not registered	472 hours (19.7 days)
➕ Other features
	Xiaomi Mi 8 (64GB)	Sony Xperia U (ST25i)
Call control	Voice dialing, Voice recorder, Voice commands	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, Flash player
Antenna	Internal antenna	Internal antenna
Qwerty physical keyboard	Not supported	Not supported
Miscellaneous	• Colors: Black, Blue, White, Gold • MIUI 9.5 • Always-On Display • WiFi display	• Colors: Black, White • Exchangeable bottom caps: White, Black, Pink, Yellow • Sony Reality Display • Sony Mobile BRAVIA Engine • xLoud • 3D surround sound • WiFi hotspot • Java framework
☢️ Radiation rate
	Xiaomi Mi 8 (64GB)	Sony Xperia U (ST25i)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	1.09W/kg (head), 0.93W/kg (body)
SAR 2W/kg (Europe, UK, etc.)	feature not registered	1.62W/kg (head)