Xiaomi Mi 8 SE (64GB/6GB) vs Microsoft Lumia 640 (Dual-Sim 3G)

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Side by side comparison between Xiaomi Mi 8 SE vs Microsoft Lumia 640 phones, differences, pros, cons and full specifications. What's the better?

6/6/2018 9:54 PM, updated: 5/11/2020 1:23 PM

Compare Microsoft Lumia 640 X Xiaomi Mi 8 SE (64GB/6GB) 25Points

Specifications Compare Models Pictures

5.88"
AMOLED

1080x2248

12
MP

20mp

6GB
RAM

Octa-core

3120
mAh

(Non removable)

07Points Microsoft Lumia 640 (Dual-Sim 3G) Compare Xiaomi Mi 8 SE X

Specifications Compare Models Pictures

5"
IPS

720x1280

8
MP

1mp

1GB
RAM

Quad-core

2500
mAh

(Removable)

What's the better phone? Xiaomi Mi 8 SE (64GB/6GB)

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!

25 Advantages Xiaomi Mi 8 SE (64GB/6GB)	vs	7 Advantages Microsoft Lumia 640 (Dual-Sim 3G)
+2.2GHz 64bit Octa-core168% More powerful processor, you can open your applications faster	vs	1.2GHz 32bit Quad-core
+6GB LPDDR4X5 times More RAM memory. Typically more responsive and better for multitasking.	vs	1GB LPDDR2
+64GB (51GB available)16 times More internal storage for applications and files	vs	8GB (3GB available)
+7.5 millimeters (0.3 inches)17% Thinner	vs	8.8 millimeters (0.35 inches)
+Super AMOLEDAdvantage Super AMOLED display is brighter and more vivid	vs	TFT IPS LCD
+1080x2248 pixels163% Higher resolution screen	vs	720x1280 pixels
+424 PPI44% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	294 PPI
+5.88"18% Larger screen	vs	5"
+(dual camera) 12MP + 5MP113% Higher resolution main camera	vs	(back) 8MP
+HDR photo on both camerasAdvantage The HDR technology produced photos with more detail in dark areas	vs	HDR photo only main camera
+1/2.55" inches57% The larger sensor camera lets you take photos with better depth.	vs	1/4" inches
+f/1.9 (aperture)16% Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.	vs	f/2.2 (aperture)
+(front) 20MP21 times Higher resolution secondary camera to take pictures and selfies	vs	(front) 1MP
+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)
+3500000 apps (Google Play Store)4 times More apps available to download and use	vs	700000 apps (Marketplace)
+4G LTE-AAdvantage The 4G LTE-A network is newer and faster	vs	3G+ HSPA+
+(4G LTE-A) 800 Mbps18 times Faster for surfing the internet and download files	vs	(3G+ HSPA+) 42 Mbps
+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
+3120 mAh25% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use	vs	2500 mAh
+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	4.0 + A2DP
+Type-CAdvantage Reversible connector, you can stick in a USB-C cable any which way; either side is up.	vs	MicroUSB 2.0
Not supported	vs	+Until 128GB microSD, microSDXCAdvantage More external storage for files using memory cards
164 grams (5.74 ounces)	vs	+145 grams (5.08 ounces)13% Lighter
Not supported	vs	+BSI sensorAdvantage The BSI sensor allows the entry of more light generating photos with more detail and brightness
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	+FMAdvantage The radio lets you listen to your songs and sports in general
Not supported	vs	+DLNAAdvantage With DLNA technology you can access and play media files on TV, tablet or DLNA compatible device.

19 Common items in both devices

16 million

LED flash

Only digital zoom

PDAF: phase detection autofocus / Autofocus

Capacitive

Multitouch

Accelerometer

+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 SE (64GB/6GB)	Microsoft Lumia 640 (Dual-Sim 3G)
Change model		Choose the model
Model	Xiaomi Mi 8 SE (64GB/6GB)	Lumia 640 (Dual-Sim 3G)
Other model names	小米8 SE, Xiaomi Mi8 SE (64GB+6GB RAM) M1805E2A, Xiaomi Sirius	Microsoft Lumia 640 3G Dual Sim, Microsoft RM-1109
Country or region available	China, Hong Kong, Taiwan, (Global, International)	feature not registered
Brand	Xiaomi	Microsoft
Release date	6/1/2018	4/1/2015
Depth	7.5 millimeters (0.3 inches)	8.8 millimeters (0.35 inches)
Size (width x height)	73.09 x 147.28 millimeters (2.88 x 5.8 in)	72.2 x 141.3 millimeters (2.84 x 5.56 in)
Weight	164 grams (5.74 ounces)	145 grams (5.08 ounces)
Build, materials	Aluminum frame, glass front/back	feature not registered
Protection against water and others	Not supported	Not supported
📲 Display
	Xiaomi Mi 8 SE (64GB/6GB)	Microsoft Lumia 640 (Dual-Sim 3G)
Display type	Super AMOLED	TFT IPS LCD
Screen size	5.88" inches	5" inches
Screen-to-body ratio	~80.9% (screen-to-body ratio)	~67.6% (screen-to-body ratio)
Display resolution	1080x2248 pixels	720x1280 pixels
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	424 PPI	294 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass 5	Gorilla Glass 3
Refresh rate	feature not registered	feature not registered
Display features	feature not registered	feature not registered
🤖 Operating System
	Xiaomi Mi 8 SE (64GB/6GB)	Microsoft Lumia 640 (Dual-Sim 3G)
System version	Android 8.1 Oreo	Windows Phone 8.1
Firmware update	Android 9.0 Pie	feature not registered
User Interface	feature not registered	feature not registered
⚙️ Processor
	Xiaomi Mi 8 SE (64GB/6GB)	Microsoft Lumia 640 (Dual-Sim 3G)
Chipset	64bit: Qualcomm Snapdragon 710 SDM710 (10nm)	32bit: Qualcomm Snapdragon 400 MSM8926 (28nm)
CPU	Octa-core, 2 processors: 2x 2.2GHz Kryo 360 Gold (Dual-core) 6x 1.7GHz Kryo 360 Silver (Hexa-core)	Quad-core, 1 processor: 4x 1.2GHz ARM Cortex-A7 (Quad-core)
GPU graphical controller	Qualcomm Adreno 616 500Mhz	Qualcomm Adreno 305 400Mhz
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	Xiaomi Mi 8 SE (64GB/6GB)	Microsoft Lumia 640 (Dual-Sim 3G)
RAM memory	6GB LPDDR4X	1GB LPDDR2
Internal storage	64GB (51GB available) eMMC 5.1	8GB (3GB available)
External storage	Not supported	Until 128GB microSD, microSDXC (dedicated slot)
📶 Mobile networks
	Xiaomi Mi 8 SE (64GB/6GB)	Microsoft Lumia 640 (Dual-Sim 3G)
Dual-SIM	Dual-SIM Standby - Call active on one sim card	Dual-SIM Standby - Call active on one sim card (dedicated slot)
SIM card	2 slots (Dual-SIM) nano-SIM (4FF)	2 slots (Dual-SIM) micro-SIM (3FF)
Maximum Download / Upload	800/150 Mbps	42/5.76 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 850/900/1900/2100	UMTS 850/900/1900/2100
Primary 4G network	LTE Cat15 (Bands 1,3,5,7,8,20) TD-LTE (Bands 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, HSPA+
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 SE (64GB/6GB)	Microsoft Lumia 640 (Dual-Sim 3G)
Back camera (main camera)	(dual camera) 12 megapixels 5MP depth f/2.01.12µm	8 megapixels
Main camera resolution	4000x3000 pixels	3264x2448 pixels
Video recording (primary)	4K UHD (3840x2160) 30 fps	Full HD (1920x1080) 30 fps
Flash	LED flash	LED flash
Focal aperture	f/1.9 (aperture)	f/2.2 (aperture)
Focal length	feature not registered	feature not registered
Sensor size	1/2.55" inches	1/4" inches
Pixel size	1.4µm pixel	feature not registered
Autofocus	PDAF: phase detection autofocus	Autofocus
Touch focus	Supported	Supported
Image stabilization	EIS: Digital stabilization	feature not registered
Zoom	Only digital zoom	Only digital zoom
Face/smile detection	Face detection, Smile detection	Face detection
BSI sensor	Not supported	Supported
HDR	HDR photo on both cameras	HDR photo only main camera
Camera extras	feature not registered	feature not registered
📸 Front camera
	Xiaomi Mi 8 SE (64GB/6GB)	Microsoft Lumia 640 (Dual-Sim 3G)
Front camera (secondary)	20 megapixels	1 megapixels
Front camera resolution	5184x3840 pixels	1280x720 pixels
Video recording (secondary)	Full HD (1920x1080)	HD (1280x720)
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	feature not registered	feature not registered
Pixel size	1µm pixel	feature not registered
🔉 Sound and multimedia
	Xiaomi Mi 8 SE (64GB/6GB)	Microsoft Lumia 640 (Dual-Sim 3G)
Loudspeaker	Supported	Supported
Active noise cancellation	2 microphones or more	2 microphones or more
Radio	Not supported	FM
TV	Not supported	Not supported
Video formats	MP4, H.265, H.264, H.263, DivX, XviD, WMV	MP4, H.264, H.263, WMV
Audio formats	MP3, WAV, WMA, eAAC+, FLAC	MP3, WAV, WMA, eAAC+
🔌 Connectivity
	Xiaomi Mi 8 SE (64GB/6GB)	Microsoft Lumia 640 (Dual-Sim 3G)
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	Not supported	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)
DLNA	Not supported	Supported
GPS	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou	A-GPS, GeoTagging, GLONASS
NFC	Not supported	Not supported
Infrared port	Supported	Not supported
🧭 Sensors
	Xiaomi Mi 8 SE (64GB/6GB)	Microsoft Lumia 640 (Dual-Sim 3G)
Sensors	Accelerometer Ambient light sensor 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 SE (64GB/6GB)	Microsoft Lumia 640 (Dual-Sim 3G)
Battery type	LiPo: li-ion polymer (Non removable)	Li-Ion: lithium-ion (Removable)
Battery capacity	3120 mAh	2500 mAh
Charger, watts	18W Wired fast charging	Wired charging
Inductive / wireless charging	feature not registered	feature not registered
Talk time autonomy	feature not registered	20 hours
Standby	feature not registered	840 hours (35 days)
➕ Other features
	Xiaomi Mi 8 SE (64GB/6GB)	Microsoft Lumia 640 (Dual-Sim 3G)
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: Gray, Blue, Red, Gold • MIUI 9.5 • 18.7:9 / DCI-P3 / HDR10 display • Quick Charge 3.0 • WiFi display	• Colors: Black • Lumia Denim UI • Microsoft ClearBlack display • OneDrive 30GB • Beidou GPS • WiFi hotspot
☢️ Radiation rate
	Xiaomi Mi 8 SE (64GB/6GB)	Microsoft Lumia 640 (Dual-Sim 3G)
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