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Microsoft Lumia 640 (LTE) vs Xiaomi 17 (512GB/12GB)

Side by side comparison between Microsoft Lumia 640 vs Xiaomi 17 phones, differences, pros, cons and full specifications. What's the better?

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Compare Xiaomi 17 X Microsoft Lumia 640 (LTE) 06Points
5"
IPS

720x1280

8
MP

1mp

1GB
RAM

Quad-core

2500
mAh

(Removable)

vs
32Points Xiaomi 17 (512GB/12GB) Compare Microsoft Lumia 640 X
6.3"
AMOLED

1220x2656

50
MP

50mp

12GB
RAM

Octa-core

7000
mAh

(Non removable)

What's the better phone? Xiaomi 17 (512GB/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!

Lumia 640 (LTE)} 6 Advantages Microsoft Lumia 640 (LTE) vs 17 (512GB/12GB)} 32 Advantages Xiaomi 17 (512GB/12GB)
+Until 128GB microSD, microSDXCAdvantage
More external storage for files using memory cards
vsNot supported
+145 grams (5.08 ounces)32%
Lighter
vs191 grams (6.69 ounces)
+Li-Ion: lithium-ion (Removable)Advantage
Removable battery can be replaced easily
vsLi-Si: lithium-silicon (Non removable)
+3.5mm jackAdvantage
Headsets with 3.5mm Jack size are more common and easy to find in stores
vsType-C reversible connector
+FMAdvantage
The radio lets you listen to your songs and sports in general
vsNot supported
+DLNAAdvantage
With DLNA technology you can access and play media files on TV, tablet or DLNA compatible device.
vsNot supported
1.2GHz 32bit Quad-corevs+4.61GHz 64bit Octa-core (3nm)5 times
More powerful processor, you can open your applications faster
1GB LPDDR2vs+12GB LPDDR5X11 times
More RAM memory. Typically more responsive and better for multitasking.
8GB (3GB available)vs+512GB (458GB available)152 times
More internal storage for applications and files
8.8 millimeters (0.35 inches)vs+8.1 millimeters (0.32 inches)9%
Thinner
TFT IPS LCDvs+LTPO AMOLEDAdvantage
LTPO AMOLED display is brighter and more vivid
16 millionvs+68 billion4249 times
More colors on the screen is better quality images and videos
720x1280 pixelsvs+1220x2656 pixels3 times
Higher resolution screen
294 PPIvs+464 PPI58%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
5"vs+6.3"26%
Larger screen
(back) 8MPvs+(triple camera) 50MP + 50MP + 50MP18 times
Higher resolution main camera
LED flashvs+Dual-LED flashAdvantage
The Dual-LED flash helps in dark places or in low light
Only digital zoomvs+Digital and optical zoomAdvantage
The zoom allows for better focus and approach to take pictures
HDR photo only main cameravs+HDR photo/video on both camerasAdvantage
The HDR technology produced photos with more detail in dark areas
1/4" inchesvs+1/1.31" inches2 times
The larger sensor camera lets you take photos with better depth.
f/2.2 (aperture)vs+f/1.7 (aperture)29%
Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
(front) 1MPvs+(front) 50MP53 times
Higher resolution secondary camera to take pictures and selfies
Full HD (1920x1080)vs+8K UHD (7680x4320)15 times
More image quality for recording videos with the primary camera
(front) HD (1280x720)vs+(front) 4K UHD (3840x2160)8 times
More image quality for recording videos with the secondary camera
700000 apps (Marketplace)vs+3500000 apps (Google Play Store)4 times
More apps available to download and use
4G LTEvs+5G Sub6Advantage
The 5G Sub6 network is newer and faster
(4G LTE) 150 Mbpsvs+(5G Sub6) 3000 Mbps19 times
Faster for surfing the internet and download files
Not supportedvs+BarometerAdvantage
Sensors help you use the device
Not supportedvs+Face unlock 2DAdvantage
Sensors help you use the device
Not supportedvs+Fingerprint sensor (under display)Advantage
Sensors help you use the device
Not supportedvs+GyroscopeAdvantage
Sensors help you use the device
2500 mAhvs+7000 mAh180%
Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
1 slot (Single-SIM)
(dedicated slot)
vs+2 slots (Dual-SIM)Advantage
You can have more mobile carriers/operators on the same device.
802.11 b/g/n [wifi4]vs+802.11 a/b/g/n/ac/ax/be [wifi7/6]Advantage
WiFi 802.11 a/b/g/n/ac/ax/be [wifi7/6] is newer and faster
4.0 + A2DPvs+5.4 + A2DP/LEAdvantage
Bluetooth 5.4 + A2DP/LE is newer and faster
MicroUSB 2.0vs+USB 3.2 Type-C, USB OTG On-The-GoAdvantage
Newer and faster USB version for transferring photos, mp3 or data.
MicroUSB 2.0vs+Type-CAdvantage
Reversible connector, you can stick in a USB-C cable any which way; either side is up.
Not supportedvs+IP68 certifiedAdvantage
Protection against water allows you talk to your friends in the rain, for example

16 Common items in both devices
Autofocus / PDAF: phase detection autofocus on both cameras
BSI sensor
Capacitive
Multitouch
Accelerometer
Ambient light sensor
Compass
+9 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 Clear highlight

📱 Model features

Microsoft Lumia 640 (LTE)Xiaomi 17 (512GB/12GB)
ModelLumia 640 (LTE)Xiaomi 17 (512GB/12GB)
Other model namesAT&T Microsoft Lumia 640 4G RM-1072, Lumia 640 RM-1073Xiaomi 17 25113PN0EC
Country or region availablefeature not registered(Global, International)
(Global, International)
BrandMicrosoftXiaomi
Release date4/1/20159/27/2025, Announced: 9/25/2025
Depth8.8 millimeters (0.35 inches)8.1 millimeters (0.32 inches)
Size (width x height)72.2 x 141.3 millimeters (2.84 x 5.56 in)71.8 x 151.1 millimeters (2.83 x 5.95 in)
Weight145 grams (5.08 ounces)191 grams (6.69 ounces)
Build, materialsfeature not registeredAluminum frame, glass front/back
Protection against water and othersNot supportedIP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant

📲 Display

Microsoft Lumia 640 (LTE)Xiaomi 17 (512GB/12GB)
Display typeTFT IPS LCDLTPO AMOLED
Screen size5" inches6.3" inches
Screen-to-body ratio~67.6% (screen-to-body ratio)~89.5% (screen-to-body ratio)
Display resolution720x1280 pixels1220x2656 pixels (19.5:9)
TouchscreenCapacitive MultitouchCapacitive Multitouch
Pixel density (dot pitch)294 PPI464 PPI
Colors16 million68 billion
Scratch-resistant glassGorilla Glass 3Dragon Crystal Glass
Refresh ratefeature not registered120Hz
Display featuresfeature not registered3500nits[peak]
Dolby Vision/HDR10+

🤖 Operating System

Microsoft Lumia 640 (LTE)Xiaomi 17 (512GB/12GB)
System versionWindows Phone 8.1Android 16
Firmware updatefeature not registeredfeature not registered
User Interfacefeature not registeredHyperOS 3

⚙️ Processor

Microsoft Lumia 640 (LTE)Xiaomi 17 (512GB/12GB)
Chipset32bit: Qualcomm Snapdragon 400 MSM8926 (28nm)64bit: Qualcomm Snapdragon 8 Elite Gen 5 (SM8850-AC) (3nm)
CPUQuad-core, 1 processor:
4x 1.2GHz ARM Cortex-A7 (Quad-core)
Octa-core, 2 processors:
2x 4.61GHz Oryon V3 Phoenix L (Dual-core)
6x 3.62GHz Oryon V3 Phoenix M (Hexa-core)
GPU graphical controllerQualcomm Adreno 305 400MhzQualcomm Adreno 840
Performance (benchmark)feature not registeredAnTuTu: 3492566 (v11)
Geekbench: 11228 (v6.5)

💽 Memory and storage

Microsoft Lumia 640 (LTE)Xiaomi 17 (512GB/12GB)
RAM memory1GB LPDDR212GB LPDDR5X
Internal storage8GB (3GB available)512GB (458GB available)
External storageUntil 128GB microSD, microSDXC
(dedicated slot)
Not supported

📶 Mobile networks

Microsoft Lumia 640 (LTE)Xiaomi 17 (512GB/12GB)
Dual-SIMNot supportedDual-SIM Standby - Call active on one sim card
SIM card1 slot (Single-SIM)
micro-SIM (3FF)
2 slots (Dual-SIM)
nano-SIM (4FF)
Maximum Download / Upload150/50 Mbps3000/1024 Mbps
Network technology2G, 3G, 4G2G, 3G, 4G, 5G
Frequency, bands Expand band details Collapse details
GSM MHz bandQuad-Band 850/900/1800/1900Quad-Band 850/900/1800/1900
Primary 2G networkGSM 850/900/1800/1900GSM 850/900/1800/1900
Primary 3G networkUMTS 850/900/2100UMTS 800/850/900/1700/1900/2100
Primary 4G networkLTE Cat4 800/900/1800/2100/2600 (Bands 1/3/7/8/20)LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 28, 66)
TD-LTE (34, 38, 39, 40, 41, 42, 48)
VoLTE
Primary 5G networkNot supportedSA/NSA/Sub6 (1, 2, 3, 5, 7, 8, 12, 18, 20, 25, 26, 28, 38, 40, 41, 48, 66, 77, 78, 80, 81, 83, 84, 89)
Primary data networkGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTEGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6
Secondary 2G networkNot supportedGSM 850/900/1800/1900
Secondary 3G networkNot supportedUMTS 800/850/900/1700/1900/2100
Secondary 4G networkNot supportedLTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 28, 66)
TD-LTE (34, 38, 39, 40, 41, 42, 48)
VoLTE
Secondary data networkNot supportedGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6

📷 Camera

Microsoft Lumia 640 (LTE)Xiaomi 17 (512GB/12GB)
Back camera (main camera)8 megapixels(triple camera)
50 megapixels
50MP telephoto f/2.060mm1/2.76"0.64µmPDAFOIS2.6x-optical-zoom
50MP ultrawide f/2.417mm102°1/2.76"0.64µm
Main camera resolution3264x2448 pixels8160x6120 pixels
Video recording (primary)Full HD (1920x1080) 30 fps8K UHD (7680x4320) 30 fps
FlashLED flashDual-LED flash
Focal aperturef/2.2 (aperture)f/1.7 (aperture)
Focal lengthfeature not registered23mm (lens)
Sensor size1/4" inches1/1.31" inches
Pixel sizefeature not registered1.2µm pixel
AutofocusAutofocusPDAF: phase detection autofocus on both cameras
Touch focusSupportedSupported
Image stabilizationfeature not registeredOIS: Optical stabilization
ZoomOnly digital zoomDigital and optical zoom
Face/smile detectionFace detectionFace detection, Smile detection
BSI sensorSupportedSupported
HDRHDR photo only main cameraHDR photo/video on both cameras
Camera extrasfeature not registered8K@30fps (HDR)
4K@30/60fps (HDR10+
10-bit Dolby Vision/HDR
10-bit LOG
1080p@30/60/120/240/960fps
720p@1920fps

📸 Front camera

Microsoft Lumia 640 (LTE)Xiaomi 17 (512GB/12GB)
Front camera (secondary)1 megapixels50 megapixels
Front camera resolution1280x720 pixels8160x6120 pixels
Video recording (secondary)HD (1280x720)4K UHD (3840x2160)
Front flashNot supportedNot supported
Focal aperturefeature not registeredf/2.2 (aperture)
Focal lengthfeature not registered21mm (lens)
Sensor sizefeature not registeredfeature not registered
Pixel sizefeature not registeredfeature not registered

🔉 Sound and multimedia

Microsoft Lumia 640 (LTE)Xiaomi 17 (512GB/12GB)
LoudspeakerSupportedStereo sound with dual speakers
24-bit/192kHz
Dolby Atmos
Hi-Res audio
Active noise cancellation2 microphones or more4 microphones
RadioFMNot supported
TVNot supportedNot supported
Video formatsMP4, H.264, H.263, WMVMP4, H.265, H.264, H.263, XviD, MKV
Audio formatsMP3, WAV, WMA, eAAC+MP3, WAV, WMA, eAAC+, FLAC

🔌 Connectivity

Microsoft Lumia 640 (LTE)Xiaomi 17 (512GB/12GB)
USBMicroUSB 2.0USB 3.2 Type-C, USB OTG On-The-Go
Audio output3.5mm jackType-C reversible connector
TV outputNot supportedUSB Type-C (reversible)
Bluetooth4.0 + A2DP5.4 + A2DP/LE
WiFi802.11 b/g/n [wifi4] (2.4GHz)802.11 a/b/g/n/ac/ax/be [wifi7/6] (2.4GHz, 5GHz, 6GHz) + MIMO
WiFi Direct, hotspot
DLNASupportedNot supported
GPSA-GPS, GeoTagging, GLONASSA-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS, NavIC
NFCSupportedSupported
Infrared portNot supportedSupported

🧭 Sensors

Microsoft Lumia 640 (LTE)Xiaomi 17 (512GB/12GB)
SensorsAccelerometer
Ambient light sensor
Compass
Proximity sensor
Accelerometer
Ambient light sensor
Barometer
Compass
Face unlock 2D
Fingerprint sensor (under display)
Gyroscope
Proximity sensor
Vibrating alertSupportedSupported

🔋 Battery

Microsoft Lumia 640 (LTE)Xiaomi 17 (512GB/12GB)
Battery typeLi-Ion: lithium-ion (Removable)Li-Si: lithium-silicon (Non removable)
Battery capacity2500 mAh7000 mAh
Charger, wattsWired charging100W Wired fast charging
Reverse charging by cable
Quick Charge 3+
USB Power Delivery 3.0
Inductive / wireless chargingfeature not registered50W Qi Wireless charging (Qi/WPC)
22.5W Reverse wireless charging
Talk time autonomy20 hoursfeature not registered
Standby840 hours (35 days)feature not registered

➕ Other features

Microsoft Lumia 640 (LTE)Xiaomi 17 (512GB/12GB)
Call controlVoice dialing, Voice recorderVoice dialing, Voice recorder, Voice commands
MessagingSMS (T9), MMS, E-mail, Push mailSMS (T9), MMS, E-mail, Push mail
Hands-free callingSupportedSupported
Video callingSupportedSupported
RingtonesPolyphonic and customizedPolyphonic and customized
Web browserHTML, XHTML, HTML5HTML, XHTML, HTML5
AntennaInternal antennaInternal antenna
Qwerty physical keyboardNot supportedNot supported
Miscellaneous• Colors: Black
• Lumia Denim UI
• Microsoft ClearBlack display
• OneDrive 30GB
• Beidou GPS
• WiFi hotspot
• Colors: Black, Blue, Pink, White

☢️ Radiation rate

Microsoft Lumia 640 (LTE)Xiaomi 17 (512GB/12GB)
SAR 1.6W/kg (USA, Mexico, etc.)feature not registeredfeature not registered
SAR 2W/kg (Europe, UK, etc.)feature not registeredfeature not registered
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