Microsoft Lumia 640 XL (4G LTE) vs Xiaomi Mi 6 (128GB)

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Side by side comparison between Microsoft Lumia 640 XL vs Xiaomi Mi 6 phones, differences, pros, cons and full specifications. What's the better?

8/30/2017 8:17 PM, updated: 5/11/2020 1:23 PM

Compare Xiaomi Mi 6 X Microsoft Lumia 640 XL (4G LTE) 06Points

Specifications Compare Models Pictures

5.7"
IPS

720x1280

13
MP

5mp

1GB
RAM

Quad-core

3000
mAh

(Removable)

26Points Xiaomi Mi 6 (128GB) Compare Microsoft Lumia 640 XL X

Specifications Compare Models Pictures

5.15"
IPS

1080x1920

12.2
MP

8mp

6GB
RAM

Octa-core

3350
mAh

(Non removable)

What's the better phone? Xiaomi Mi 6 (128GB)

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!

6 Advantages Microsoft Lumia 640 XL (4G LTE)	vs	26 Advantages Xiaomi Mi 6 (128GB)
+Until 256GB microSD, microSDXCAdvantage More external storage for files using memory cards	vs	Not supported
+5.7"11% Larger screen	vs	5.15"
+Li-Ion: lithium-ion (Removable)Advantage Removable battery can be replaced easily	vs	LiPo: li-ion polymer (Non removable)
+3.5mm jackAdvantage Headsets with 3.5mm Jack size are more common and easy to find in stores	vs	Type-C reversible connector
+FMAdvantage The radio lets you listen to your songs and sports in general	vs	Not supported
+Gorilla Glass 3Advantage Protection against scratches on the screen lets you carry your phone with your keys	vs	Not supported
1.2GHz 32bit Quad-core	vs	+2.45GHz 64bit Octa-core (10nm)199% More powerful processor, you can open your applications faster
1GB LPDDR2	vs	+6GB LPDDR4X5 times More RAM memory. Typically more responsive and better for multitasking.
8GB (3GB available)	vs	+128GB (110GB available)36 times More internal storage for applications and files
171 grams (5.99 ounces)	vs	+168 grams (5.88 ounces)2% Lighter
9 millimeters (0.35 inches)	vs	+7.5 millimeters (0.3 inches)20% Thinner
720x1280 pixels	vs	+1080x1920 pixels125% Higher resolution screen
258 PPI	vs	+428 PPI66% Crisper display of text, images and videos because it has more pixels per inch (ppi)
(back) 13MP	vs	+(dual camera) 12.2MP + 12MP89% Higher resolution main camera
LED flash	vs	+Dual-LED flashAdvantage The Dual-LED flash helps in dark places or in low light
Only digital zoom	vs	+Digital and optical zoomAdvantage The zoom allows for better focus and approach to take pictures
EIS: Digital stabilization	vs	+OIS (4-axis): Optical stabilizationAdvantage Image stabilization prevents blurry photos and helps in recording motion video
HDR photo only main camera	vs	+HDR photo on both camerasAdvantage The HDR technology produced photos with more detail in dark areas
1/3" inches	vs	+1/2.9" inches3% The larger sensor camera lets you take photos with better depth.
f/2.0 (aperture)	vs	+f/1.8 (aperture)11% Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
(front) 5MP	vs	+(front) 8MP59% Higher resolution secondary camera to take pictures and selfies
Full HD (1920x1080)	vs	+4K UHD (3840x2160)3 times More image quality for recording videos with the primary camera
700000 apps (Marketplace)	vs	+3500000 apps (Google Play Store)4 times More apps available to download and use
(4G LTE) 150 Mbps	vs	+(4G LTE-A) 450 Mbps2 times Faster for surfing the internet and download files
Not supported	vs	+BarometerAdvantage Sensors help you use the device
Not supported	vs	+Fingerprint sensorAdvantage Sensors help you use the device
Not supported	vs	+GyroscopeAdvantage Sensors help you use the device
3000 mAh	vs	+3350 mAh12% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
802.11 b/g/n [wifi4]	vs	+802.11 a/b/g/n/ac [wifi5]Advantage WiFi 802.11 a/b/g/n/ac [wifi5] is newer and faster
4.0 + A2DP	vs	+5.0 + A2DP/LEAdvantage Bluetooth 5.0 + A2DP/LE is newer and faster
MicroUSB 2.0	vs	+Type-CAdvantage Reversible connector, you can stick in a USB-C cable any which way; either side is up.
Not supported	vs	+Water splash resistant (don't immerse)Advantage Protection against water allows you talk to your friends in the rain, for example

22 Common items in both devices

TFT IPS LCD

16 million

Autofocus / PDAF: phase detection autofocus

BSI sensor

(front) Full HD (1920x1080)

4G LTE / 4G LTE-A

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
	Microsoft Lumia 640 XL (4G LTE)	Xiaomi Mi 6 (128GB)
Change model		Choose the model
Model	Lumia 640 XL (4G LTE)	Xiaomi Mi 6 (128GB)
Other model names	Microsoft Lumia 640 XL LTE RM-1075 Dual-sim	Xiaomi Mi6 MCE16, Xiaomi Sagit
Country or region available	(Global, International)	(Global, International), China, Hong Kong, Taiwan
Brand	Microsoft	Xiaomi
Release date	4/1/2015	4/1/2017
Depth	9 millimeters (0.35 inches)	7.5 millimeters (0.3 inches)
Size (width x height)	81.5 x 157.9 millimeters (3.21 x 6.22 in)	70.5 x 145.2 millimeters (2.78 x 5.72 in)
Weight	171 grams (5.99 ounces)	168 grams (5.88 ounces)
Build, materials	Plastic body, glass front	feature not registered
Protection against water and others	Not supported	Water splash resistant (don't immerse)
📲 Display
	Microsoft Lumia 640 XL (4G LTE)	Xiaomi Mi 6 (128GB)
Display type	TFT IPS LCD	TFT IPS LCD
Screen size	5.7" inches	5.15" inches
Screen-to-body ratio	~69.6% (screen-to-body ratio)	~71.4% (screen-to-body ratio)
Display resolution	720x1280 pixels	1080x1920 pixels
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	258 PPI	428 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass 3	Not supported
Refresh rate	feature not registered	feature not registered
Display features	feature not registered	feature not registered
🤖 Operating System
	Microsoft Lumia 640 XL (4G LTE)	Xiaomi Mi 6 (128GB)
System version	Windows Phone 8.1	Android 7.1.1 Nougat
Firmware update	feature not registered	feature not registered
User Interface	feature not registered	feature not registered
⚙️ Processor
	Microsoft Lumia 640 XL (4G LTE)	Xiaomi Mi 6 (128GB)
Chipset	32bit: Qualcomm Snapdragon 400 MSM8226 (28nm)	64bit: Qualcomm Snapdragon 835 (MSM8998) (10nm)
CPU	Quad-core, 1 processor: 4x 1.2GHz ARM Cortex-A7 (Quad-core)	Octa-core, 2 processors: 4x 2.45GHz Kryo 280 (Quad-core) 4x 1.9GHz Kryo 280 (Quad-core)
GPU graphical controller	Qualcomm Adreno 305	Qualcomm Adreno 540 (670-710MHz)
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	Microsoft Lumia 640 XL (4G LTE)	Xiaomi Mi 6 (128GB)
RAM memory	1GB LPDDR2	6GB LPDDR4X
Internal storage	8GB (3GB available)	128GB (110GB available)
External storage	Until 256GB microSD, microSDXC (dedicated slot)	Not supported
📶 Mobile networks
	Microsoft Lumia 640 XL (4G LTE)	Xiaomi Mi 6 (128GB)
Dual-SIM	Dual-SIM Standby - Call active on one sim card (dedicated slot)	Dual-SIM Standby - Call active on one sim card
SIM card	2 slots (Dual-SIM) micro-SIM (3FF)	2 slots (Dual-SIM) nano-SIM (4FF)
Maximum Download / Upload	150/50 Mbps	450/50 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	GSM 850/900/1800/1900	CDMA 800, GSM 850/900/1800/1900
Primary 3G network	UMTS 850/900/1700/1900/2100	CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 850/900/1900/2100
Primary 4G network	LTE Cat4 700/800/850/900/1700/1800/1900/2100/2300/2600 (Bands 1,2,3,4,5,7,8,12,17,20,28,38,40)	LTE Cat9 850/900/1800/2100/2600 (Bands 1,3,5,7,8) TD-LTE 1900/2300/2500/2600 (Bands 38,39,40,41)
Primary 5G network	Not supported	Not supported
Primary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE	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
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
	Microsoft Lumia 640 XL (4G LTE)	Xiaomi Mi 6 (128GB)
Back camera (main camera)	13 megapixels	(dual camera) 12.2 megapixels 12MP f/2.652mm
Main camera resolution	4128x3096 pixels	4032x3016 pixels
Video recording (primary)	Full HD (1920x1080) 30 fps	4K UHD (3840x2160) 30 fps
Flash	LED flash	Dual-LED flash
Focal aperture	f/2.0 (aperture)	f/1.8 (aperture)
Focal length	28mm (lens)	27mm (lens)
Sensor size	1/3" inches	1/2.9" inches
Pixel size	feature not registered	1.25µm pixel
Autofocus	Autofocus	PDAF: phase detection autofocus
Touch focus	Supported	Supported
Image stabilization	EIS: Digital stabilization	OIS (4-axis): 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 only main camera	HDR photo on both cameras
Camera extras	feature not registered	feature not registered
📸 Front camera
	Microsoft Lumia 640 XL (4G LTE)	Xiaomi Mi 6 (128GB)
Front camera (secondary)	5 megapixels	8 megapixels
Front camera resolution	2592x1944 pixels	3264x2448 pixels
Video recording (secondary)	Full HD (1920x1080)	Full HD (1920x1080)
Front flash	Not supported	Not supported
Focal aperture	feature not registered	feature not registered
Focal length	feature not registered	feature not registered
Sensor size	feature not registered	feature not registered
Pixel size	feature not registered	feature not registered
🔉 Sound and multimedia
	Microsoft Lumia 640 XL (4G LTE)	Xiaomi Mi 6 (128GB)
Loudspeaker	Supported	Supported
Active noise cancellation	2 microphones or more	2 microphones or more
Radio	FM	Not supported
TV	Not supported	Not supported
Video formats	MP4, H.264, H.263, WMV	MP4, H.265, H.264, H.263, DivX, XviD
Audio formats	MP3, WAV, WMA, eAAC+	MP3, OGG, eAAC+, FLAC
🔌 Connectivity
	Microsoft Lumia 640 XL (4G LTE)	Xiaomi Mi 6 (128GB)
USB	MicroUSB 2.0	USB 2.0 Type-C reversible connector
Audio output	3.5mm jack	Type-C reversible connector
TV output	Not supported	Not supported
Bluetooth	4.0 + A2DP	5.0 + A2DP/LE
WiFi	802.11 b/g/n [wifi4] (2.4GHz)	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot
DLNA	Supported	Supported
GPS	A-GPS, GeoTagging, GLONASS, BeiDou	A-GPS, GeoTagging, GLONASS, BeiDou
NFC	Supported	Supported
Infrared port	Not supported	Supported
🧭 Sensors
	Microsoft Lumia 640 XL (4G LTE)	Xiaomi Mi 6 (128GB)
Sensors	Accelerometer Ambient light sensor Compass Proximity sensor	Accelerometer Ambient light sensor Barometer Compass Fingerprint sensor Gyroscope Hall effect Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Microsoft Lumia 640 XL (4G LTE)	Xiaomi Mi 6 (128GB)
Battery type	Li-Ion: lithium-ion (Removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	3000 mAh	3350 mAh
Charger, watts	Wired charging	Wired charging
Inductive / wireless charging	feature not registered	feature not registered
Talk time autonomy	23.7 hours	feature not registered
Standby	936 hours (39 days)	feature not registered
➕ Other features
	Microsoft Lumia 640 XL (4G LTE)	Xiaomi Mi 6 (128GB)
Call control	Voice dialing, Voice recorder	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, White • Lumia Denim UI • Microsoft ClearBlack display • OneDrive 30GB • WiFi hotspot • Headset not included	• Colors: Black, Blue, White • USB OTG On-The-Go • MIUI 8.0 • Fast battery charging • Quick Charge 3.0 • VoLTE
☢️ Radiation rate
	Microsoft Lumia 640 XL (4G LTE)	Xiaomi Mi 6 (128GB)
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