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Asus Zenfone 4 (ZE554KL 64GB/4GB NFC) vs Nokia Lumia 635 (RM-975)

Side by side comparison between Asus Zenfone 4 vs Nokia Lumia 635 phones, differences, pros, cons and full specifications. What's the better?

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Compare Nokia Lumia 635 X Asus Zenfone 4 (ZE554KL 64GB/4GB NFC) 28Points
5.5"
IPS

1080x1920

12.2
MP

8mp

4GB
RAM

Octa-core

3300
mAh

(Non removable)

vs
03Points Nokia Lumia 635 (RM-975) Compare Asus Zenfone 4 X
4.5"
IPS

480x854

5
MP
1GB
RAM

Quad-core

1830
mAh

(Removable)

What's the better phone? Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)

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!

Zenfone 4 (ZE554KL 64GB/4GB NFC)} 28 Advantages Asus Zenfone 4 (ZE554KL 64GB/4GB NFC) vs Lumia 635 (RM-975)} 3 Advantages Nokia Lumia 635 (RM-975)
+2.2GHz 64bit Octa-core150%
More powerful processor, you can open your applications faster
vs1.2GHz 32bit Quad-core
+4GB LPDDR4X3 times
More RAM memory. Typically more responsive and better for multitasking.
vs1GB
+64GB (52GB available)6 times
More internal storage for applications and files
vs8GB
+Until 256GB microSD, microSDXC100%
More external storage for files using memory cards
vsUntil 128GB microSD, microSDXC
+7.5 millimeters (0.3 inches)23%
Thinner
vs9.2 millimeters (0.36 inches)
+1080x1920 pixels4 times
Higher resolution screen
vs480x854 pixels
+401 PPI84%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
vs218 PPI
+5.5"22%
Larger screen
vs4.5"
+(dual camera) 12.2MP + 8MP3 times
Higher resolution main camera
vs(back) 5MP
+LED flashAdvantage
The LED flash helps in dark places or in low light
vsNot supported
+HDR photo on both camerasAdvantage
The HDR technology produced photos with more detail in dark areas
vsNot supported
+1/2.55" inches57%
The larger sensor camera lets you take photos with better depth.
vs1/4" inches
+f/1.8 (aperture)33%
Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
vsf/2.4 (aperture)
+(front) 8MPAdvantage
A front-camera is best for taking selfies
vsNot supported
+4K UHD (3840x2160)8 times
More image quality for recording videos with the primary camera
vsHD (1280x720)
+3500000 apps (Google Play Store)4 times
More apps available to download and use
vs700000 apps (Marketplace)
+(4G LTE-A) 600 Mbps5 times
Faster for surfing the internet and download files
vs(4G LTE) 100 Mbps
+Ambient light sensorAdvantage
Sensors help you use the device
vsNot supported
+CompassAdvantage
Sensors help you use the device
vsNot supported
+Fingerprint sensorAdvantage
Sensors help you use the device
vsNot supported
+GyroscopeAdvantage
Sensors help you use the device
vsNot supported
+3300 mAh80%
Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
vs1830 mAh
+Video callingAdvantage
The video calling allows to make calls with voice and video
vsNot supported
+2 slots (Dual-SIM)
(hybrid slot/shares the same microSD slot)Advantage
You can have more mobile carriers/operators on the same device.
vs1 slot (Single-SIM)
(dedicated slot)
+802.11 a/b/g/n/ac [wifi5]Advantage
WiFi 802.11 a/b/g/n/ac [wifi5] is newer and faster
vs802.11 b/g/n [wifi4]
+5.0 + A2DP/LEAdvantage
Bluetooth 5.0 + A2DP/LE is newer and faster
vs4.0 + A2DP
+NFCAdvantage
NFC allows you to make payments by approach quickly and securely
vsNot supported
+Type-CAdvantage
Reversible connector, you can stick in a USB-C cable any which way; either side is up.
vsMicroUSB 2.0
165 grams (5.78 ounces)vs+134 grams (4.69 ounces)23%
Lighter
LiPo: li-ion polymer (Non removable)vs+Li-Ion: lithium-ion (Removable)Advantage
Removable battery can be replaced easily
Not supportedvs+DLNAAdvantage
With DLNA technology you can access and play media files on TV, tablet or DLNA compatible device.

18 Common items in both devices
TFT IPS LCD
16 million
Only digital zoom
PDAF: phase detection autofocus / Autofocus
4G LTE-A / 4G LTE
Capacitive
Multitouch
+11 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

Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)Nokia Lumia 635 (RM-975)
ModelZenfone 4 (ZE554KL 64GB/4GB NFC)Lumia 635 (RM-975)
Other model namesAsus Zenfone 4 (NFC version) Snapdragon 630 (4GB RAM)Nokia Lumia 635 RM-975 AT&T, Nokia Moneypenny
Country or region available(Europe)South AfricaChinaUSAHong KongTaiwan
(Europe), South Africa, China, USA, Hong Kong, Taiwan
USA
USA
BrandAsusNokia
Release date10/1/20175/1/2014
Depth7.5 millimeters (0.3 inches)9.2 millimeters (0.36 inches)
Size (width x height)75.2 x 155.4 millimeters (2.96 x 6.12 in)66.7 x 129.5 millimeters (2.63 x 5.1 in)
Weight165 grams (5.78 ounces)134 grams (4.69 ounces)
Build, materialsAluminum frame, glass front/backfeature not registered
Protection against water and othersNot supportedNot supported

📲 Display

Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)Nokia Lumia 635 (RM-975)
Display typeTFT IPS LCDTFT IPS LCD
Screen size5.5" inches4.5" inches
Screen-to-body ratio~71.4% (screen-to-body ratio)~64.6% (screen-to-body ratio)
Display resolution1080x1920 pixels480x854 pixels
TouchscreenCapacitive Multitouch 10-pointsCapacitive Multitouch
Pixel density (dot pitch)401 PPI218 PPI
Colors16 million16 million
Scratch-resistant glassGorilla Glass 3Gorilla Glass 3
Refresh ratefeature not registeredfeature not registered
Display featuresfeature not registeredfeature not registered

🤖 Operating System

Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)Nokia Lumia 635 (RM-975)
System versionAndroid 7.1.1 NougatWindows Phone 8.1
Firmware updatefeature not registeredfeature not registered
User Interfacefeature not registeredfeature not registered

⚙️ Processor

Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)Nokia Lumia 635 (RM-975)
Chipset64bit: Qualcomm Snapdragon 630 SDM630 (14nm)32bit: Qualcomm Snapdragon 400
CPUOcta-core, 2 processors:
4x 2.2GHz ARM Cortex-A53 (Quad-core)
4x 1.8GHz ARM Cortex-A53 (Quad-core)
Quad-core, 1 processor:
4x 1.2GHz ARM Cortex-A7 (Quad-core)
GPU graphical controllerQualcomm Adreno 508Qualcomm Adreno 305
Performance (benchmark)feature not registeredfeature not registered

💽 Memory and storage

Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)Nokia Lumia 635 (RM-975)
RAM memory4GB LPDDR4X1GB
Internal storage64GB (52GB available)8GB
External storageUntil 256GB microSD, microSDXC
(hybrid slot/shares the same SIM-2 slot)
Until 128GB microSD, microSDXC
(dedicated slot)

📶 Mobile networks

Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)Nokia Lumia 635 (RM-975)
Dual-SIMDual-SIM Standby - Call active on one sim card
(hybrid slot/shares the same microSD slot)
Not supported
SIM card2 slots (Dual-SIM)
nano-SIM (4FF)
1 slot (Single-SIM)
micro-SIM (3FF)
Maximum Download / Upload600/150 Mbps100/50 Mbps
Network technology2G, 3G, 4G2G, 3G, 4G
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 networkChina version:
UMTS 850/900/1900/2100
North America version:
UMTS 800/850/900/1700/1900/2100
Taiwan version:
UMTS 800/850/900/1800/1900/2100
UMTS 850/900/1900/2100
Primary 4G networkLTE Cat12
China version:
LTE (Bands 1,2,3,5,7,8)
TD-LTE (Bands 34,38,39,40,41)
North America version:
LTE (Bands 1,2,3,4,5,7,8,12,17,28)
Taiwan version:
LTE (Bands 1,2,3,5,7,8,18,19,28)
TD-LTE (Bands 38,39,40,41)
LTE Cat3 800/1800/2600 (Bands 3,7,20)
Primary 5G networkNot supportedNot supported
Primary data networkGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-AGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE
Secondary 2G networkGSM 850/900/1800/1900Not supported
Secondary 3G networkNot supportedNot supported
Secondary 4G networkNot supportedNot supported
Secondary data networkGPRS, EDGENot supported

📷 Camera

Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)Nokia Lumia 635 (RM-975)
Back camera (main camera)(dual camera)
12.2 megapixels
8MP 12mm
5 megapixels
Main camera resolution4032x3024 pixels2592x1944 pixels
Video recording (primary)4K UHD (3840x2160) 30 fpsHD (1280x720) 30 fps
FlashLED flashNot supported
Focal aperturef/1.8 (aperture)f/2.4 (aperture)
Focal length25mm (lens)feature not registered
Sensor size1/2.55" inches1/4" inches
Pixel size1.4µm pixelfeature not registered
AutofocusPDAF: phase detection autofocusAutofocus
Touch focusSupportedSupported
Image stabilizationOIS (4-axis): Optical stabilizationfeature not registered
ZoomOnly digital zoomOnly digital zoom
Face/smile detectionFace detection, Smile detectionFace detection
BSI sensorNot supportedNot supported
HDRHDR photo on both camerasNot supported
Camera extrasfeature not registeredfeature not registered

📸 Front camera

Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)Nokia Lumia 635 (RM-975)
Front camera (secondary)8 megapixelsNot supported
Front camera resolution3264x2448 pixelsNot supported
Video recording (secondary)Full HD (1920x1080)Not supported
Front flashNot supportedNot supported
Focal aperturef/2.0 (aperture)feature not registered
Focal length24mm (lens)feature not registered
Sensor sizefeature not registeredfeature not registered
Pixel sizefeature not registeredfeature not registered

🔉 Sound and multimedia

Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)Nokia Lumia 635 (RM-975)
LoudspeakerSupportedSupported
Active noise cancellation2 microphones or more2 microphones or more
RadioFMFM
TVNot supportedNot supported
Video formatsMP4, H.265, H.264, H.263MP4, H.264, H.263, WMV
Audio formatsMP3, WAV, OGG, eAAC+MP3, WAV, WMA, eAAC+

🔌 Connectivity

Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)Nokia Lumia 635 (RM-975)
USBUSB 2.0 Type-C reversible connectorMicroUSB 2.0
Audio output3.5mm jack3.5mm jack
TV outputNot supportedNot supported
Bluetooth5.0 + A2DP/LE4.0 + A2DP
WiFi802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO
WiFi Direct, hotspot
802.11 b/g/n [wifi4] (2.4GHz)
DLNANot supportedSupported
GPSA-GPS, GeoTagging, GLONASS, BeiDouA-GPS, GeoTagging, GLONASS
NFCSupportedNot supported
Infrared portNot supportedNot supported

🧭 Sensors

Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)Nokia Lumia 635 (RM-975)
SensorsAccelerometer
Ambient light sensor
Compass
Fingerprint sensor
Gyroscope
Hall effect
Proximity sensor
Accelerometer
Proximity sensor
Vibrating alertSupportedSupported

🔋 Battery

Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)Nokia Lumia 635 (RM-975)
Battery typeLiPo: li-ion polymer (Non removable)Li-Ion: lithium-ion (Removable)
BL-5H
Battery capacity3300 mAh1830 mAh
Charger, watts10W (5V/2A) Wired chargingWired charging
Inductive / wireless chargingfeature not registeredfeature not registered
Talk time autonomy30 hours (1.3 days)14 hours
Standby552 hours (23 days)460 hours (19.2 days)

➕ Other features

Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)Nokia Lumia 635 (RM-975)
Call controlVoice dialing, Voice recorderVoice dialing, Voice recorder
MessagingSMS (T9), MMS, E-mail, Push mailSMS (Swype), MMS, E-mail, Push mail
Hands-free callingSupportedSupported
Video callingSupportedNot supported
RingtonesPolyphonic and customizedPolyphonic and customized
Web browserHTML, XHTML, HTML5HTML, XHTML, HTML5
AntennaInternal antennaInternal antenna
Qwerty physical keyboardNot supportedNot supported
Miscellaneous• Colors: Moonlight white, Mint green, Midnight black
• Asus ZenUI 4.0
• 2.5D glass screen
• Sony IMX362 back camera sensor
• Fast battery charging: 50% in 36min
• 24-bit/192kHz audio
• DTS surround sound
• VoLTE
• Colors: Orange, Yellow, White, Black, Green
• Nokia ClearBlack display
• Dolby headphone sound enhancement
• Internet Explorer 11
• 7GB free SkyDrive storage
• Facebook, LinkedIn, Twitter, WhatsApp
• WiFi hotspot up to 8 devices

☢️ Radiation rate

Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)Nokia Lumia 635 (RM-975)
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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