Xiaomi Mi 8 (256GB) vs Quantum V

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

6/6/2018 8:18 PM, updated: 6/23/2023 8:33 AM

Compare Quantum V X Xiaomi Mi 8 (256GB) 27Points

Specifications Compare Models Pictures

6.21"
AMOLED

1080x2248

12
MP

20mp

6GB
RAM

Octa-core

3400
mAh

(Non removable)

05Points Quantum V Compare Xiaomi Mi 8 X

Specifications Compare Models Pictures

5.5"
IPS

1080x1920

13
MP

8mp

4GB
RAM

Octa-core

4000
mAh

(Non removable)

What's the better phone? Xiaomi Mi 8 (256GB)

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!

27 Advantages Xiaomi Mi 8 (256GB)	vs	5 Advantages Quantum V
+2.8GHz 64bit Octa-core113% More powerful processor, you can open your applications faster	vs	1.5GHz 64bit Octa-core (28nm)
+6GB LPDDR4X50% More RAM memory. Typically more responsive and better for multitasking.	vs	4GB LPDDR3
+256GB (243GB available)4 times More internal storage for applications and files	vs	64GB (53GB available)
+175 grams (6.13 ounces)16% Lighter	vs	203 grams (7.11 ounces)
+7.6 millimeters (0.3 inches)36% Thinner	vs	10.3 millimeters (0.41 inches)
+Super AMOLEDAdvantage Super AMOLED display is brighter and more vivid	vs	TFT IPS LCD
+HDR10Advantage The HDR10 display provides vibrant colors and more details	vs	Not supported
+1080x2248 pixels17% Higher resolution screen	vs	1080x1920 pixels
+402 PPI1% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	401 PPI
+6.21"13% Larger screen	vs	5.5"
+(dual camera) 12MP + 12MP88% Higher resolution main camera	vs	(back) 13MP
+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
+(front) 20MP149% Higher resolution secondary camera to take pictures and selfies	vs	(front) 8MP
+4K UHD (3840x2160)3 times More image quality for recording videos with the primary camera	vs	Full HD (1920x1080)
+(front) Full HD (1920x1080)125% More image quality for recording videos with the secondary camera	vs	(front) HD (1280x720)
+Android 9.0 PieAdvantage Android 9.0 Pie is newer and safer	vs	Android 7.0 Nougat
+(4G LTE-A) 1024 Mbps2 times Faster for surfing the internet and download files	vs	(4G LTE-A) 300 Mbps
+BarometerAdvantage Sensors help you use the device	vs	Not supported
+Face unlockAdvantage Sensors help you use the device	vs	Not supported
+18W80% 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.	vs	10W
+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]
+DLNAAdvantage With DLNA technology you can access and play media files on TV, tablet or DLNA compatible device.	vs	Not supported
+5.0 + A2DP/LEAdvantage Bluetooth 5.0 + A2DP/LE is newer and faster	vs	4.0 + 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
+Gorilla Glass 5Advantage Protection against scratches on the screen lets you carry your phone with your keys	vs	Not supported
Not supported	vs	+Until 256GB microSD, microSDXCAdvantage More external storage for files using memory cards
Dual-LED flash	vs	+LED flash on both camerasAdvantage The LED flash on both cameras helps in dark places or in low light
3400 mAh	vs	+4000 mAh18% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
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	+FMAdvantage The radio lets you listen to your songs and sports in general

19 Common items in both devices

Aluminum frame, glass front/back / Aluminum body, glass front, aluminum back with plastic ends

60Hz

16 million

PDAF: phase detection autofocus / Autofocus

HDR photo on both cameras

4G LTE-A

Capacitive

+12 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 (256GB)	Quantum V
Change model
Model	Xiaomi Mi 8 (256GB)	Quantum V
Other model names	小米8, Xiaomi Mi8 6GB RAM, Xiaomi Dipper	Positivo Quantum V 4G 64GB, Quantum QX2
Country or region available	(Global, International), China, Hong Kong	Brazil
Brand	Xiaomi	Quantum
Release date	6/1/2018	8/29/2017
Depth	7.6 millimeters (0.3 inches)	10.3 millimeters (0.41 inches)
Size (width x height)	74.8 x 154.9 millimeters (2.94 x 6.1 in)	75.6 x 153 millimeters (2.98 x 6.02 in)
Weight	175 grams (6.13 ounces)	203 grams (7.11 ounces)
Build, materials	Aluminum frame, glass front/back	Aluminum body, glass front, aluminum back with plastic ends
Protection against water and others	Not supported	Not supported
📲 Display
	Xiaomi Mi 8 (256GB)	Quantum V
Display type	Super AMOLED	TFT IPS LCD
Screen size	6.21" inches	5.5" inches
Screen-to-body ratio	~83.8% (screen-to-body ratio)	~72.1% (screen-to-body ratio)
Display resolution	1080x2248 pixels	1080x1920 pixels
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	402 PPI	401 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass 5	Not supported
Refresh rate	60Hz	60Hz
Display features	600nits[typ] HDR10	2.5D glass
🤖 Operating System
	Xiaomi Mi 8 (256GB)	Quantum V
System version	Android 8.1 Oreo	Android 7.0 Nougat
Firmware update	Android 9.0 Pie	feature not registered
User Interface	feature not registered	feature not registered
⚙️ Processor
	Xiaomi Mi 8 (256GB)	Quantum V
Chipset	64bit: Qualcomm Snapdragon 845 MSM8998 (10nm)	64bit: MediaTek MT6750 (28nm)
CPU	Octa-core, 2 processors: 4x 2.8GHz Kryo 385 Gold (Quad-core) 4x 1.8GHz Kryo 385 Silver (Quad-core)	Octa-core, 2 processors: 4x 1.5GHz ARM Cortex-A53 (Quad-core) 4x 1GHz ARM Cortex-A53 (Quad-core)
GPU graphical controller	Qualcomm Adreno 630 710Mhz	ARM Mali-T860 MP2 (520MHz)
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	Xiaomi Mi 8 (256GB)	Quantum V
RAM memory	6GB LPDDR4X	4GB LPDDR3
Internal storage	256GB (243GB available) UFS 2.1	64GB (53GB available)
External storage	Not supported	Until 256GB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot)
📶 Mobile networks
	Xiaomi Mi 8 (256GB)	Quantum V
Dual-SIM	Dual-SIM Standby - Call active on one sim card	Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot)
SIM card	2 slots (Dual-SIM) nano-SIM (4FF)	2 slots (Dual-SIM) micro-SIM (3FF) and nano-SIM (4FF)
Maximum Download / Upload	1024/150 Mbps	300/50 Mbps
Network technology	2G, 3G, 4G	2G, 3G, 4G
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 850/1900/2100
Primary 4G network	LTE Cat16 (1, 2, 3, 4, 5, 7, 8, 12, 17, 20) TD-LTE (34, 38, 39, 40, 41) VoLTE	LTE Cat6 (2, 3, 4, 7, 28)
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, HSPA+, LTE, LTE-A
Secondary 2G network	GSM 850/900/1800/1900	GSM 850/900/1800/1900
Secondary 3G network	Not supported	Not supported
Secondary 4G network	Not supported	Not supported
Secondary data network	GPRS, EDGE	GPRS, EDGE
📷 Camera
	Xiaomi Mi 8 (256GB)	Quantum V
Back camera (main camera)	(dual camera) 12 megapixels 12MP telephoto f/2.456mm1/3.4"1.0µmAF2x-optical-zoom	13 megapixels
Main camera resolution	4000x3000 pixels	4128x3096 pixels
Video recording (primary)	4K UHD (3840x2160) 30 fps	Full HD (1920x1080) 30 fps
Flash	Dual-LED flash	LED flash on both cameras
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	HDR photo on both cameras
Camera extras	feature not registered	feature not registered
📸 Front camera
	Xiaomi Mi 8 (256GB)	Quantum V
Front camera (secondary)	20 megapixels	8 megapixels
Front camera resolution	5184x3840 pixels	3264x2448 pixels
Video recording (secondary)	Full HD (1920x1080)	HD (1280x720)
Front flash	Not supported	LED
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 (256GB)	Quantum V
Loudspeaker	Supported	Mono sound (not stereo)
Active noise cancellation	2 microphones or more	Not supported
Radio	Not supported	FM
TV	Not supported	Not supported
Video formats	MP4, H.265, H.264, H.263, XviD, MKV	MP4, H.265, H.264, H.263
Audio formats	MP3, WAV, WMA, eAAC+, FLAC	MP3, WAV, OGG, eAAC+, FLAC
🔌 Connectivity
	Xiaomi Mi 8 (256GB)	Quantum V
USB	USB 2.0 Type-C, USB OTG On-The-Go	MicroUSB 2.0
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	4.0 + 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) WiFi Direct, hotspot
DLNA	Supported	Not 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 (256GB)	Quantum V
Sensors	Accelerometer Ambient light sensor Barometer Compass Face unlock Fingerprint sensor (rear-mounted) Gyroscope Hall effect Proximity sensor	Accelerometer Ambient light sensor Compass Fingerprint sensor Gyroscope Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Xiaomi Mi 8 (256GB)	Quantum V
Battery type	LiPo: li-ion polymer (Non removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	3400 mAh	4000 mAh
Charger, watts	18W Wired fast charging Quick Charge 4+	10W Wired charging
Inductive / wireless charging	Not supported	Not supported
Talk time autonomy	feature not registered	28 hours (1.2 days)
Standby	feature not registered	feature not registered
➕ Other features
	Xiaomi Mi 8 (256GB)	Quantum V
Call control	Voice dialing, Voice recorder, Voice commands	Voice dialing, Voice recorder
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: Black, Blue, White, Gold • MIUI 9.5 • Always-On Display • WiFi display	• Colors: Blue • Aluminum and plastic body • Screen protector included • Silicon case included • Built-in Microvision PicoP laser projector • Projector: 720p resoultion, 31 Lumen and 5000:1 contrast • Projector: 80-inch images at 2 meters away
☢️ Radiation rate
	Xiaomi Mi 8 (256GB)	Quantum V
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	feature not registered
SAR 2W/kg (Europe, UK, etc.)	feature not registered	feature not registered