Fairphone 4 (256GB) vs Asus Zenfone 3 (5.2 ZE520KL 32GB)

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Side by side comparison between Fairphone 4 vs Asus Zenfone 3 phones, differences, pros, cons and full specifications. What's the better?

3/10/2023 7:22 AM, updated: 3/13/2023 9:26 AM

Compare Asus Zenfone 3 X Fairphone 4 (256GB) 22Points

Specifications Compare Models Pictures

6.3"
IPS

1080x2340

48
MP

25mp

8GB
RAM

Octa-core

3905
mAh

(Removable)

06Points Asus Zenfone 3 (5.2 ZE520KL 32GB) Compare Fairphone 4 X

Specifications Compare Models Pictures

5.2"
IPS+

1080x1920

16
MP

8mp

3GB
RAM

Octa-core

2650
mAh

(Non removable)

What's the better phone? Fairphone 4 (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!

22 Advantages Fairphone 4 (256GB)	vs	6 Advantages Asus Zenfone 3 (5.2 ZE520KL 32GB)
+2.2GHz 64bit Octa-core (8nm)10% More powerful processor, you can open your applications faster	vs	2GHz 64bit Octa-core (14nm)
+8GB LPDDR4X167% More RAM memory. Typically more responsive and better for multitasking.	vs	3GB LPDDR3
+256GB (220GB available)8 times More internal storage for applications and files	vs	32GB (24GB available)
+UFS 2.1Advantage Fastest write and read storage.	vs	eMMC 5.1
+Until 1TB microSD, microSDXC3 times More external storage for files using memory cards	vs	Until 256GB microSD, microSDXC
+1080x2340 pixels22% Higher resolution screen	vs	1080x1920 pixels
+6.3"21% Larger screen	vs	5.2"
+(dual camera) 48MP + 48MP5 times Higher resolution main camera	vs	(back) 16MP
+f/1.6 (aperture)25% Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.	vs	f/2.0 (aperture)
+(front) 25MP2 times Higher resolution secondary camera to take pictures and selfies	vs	(front) 8MP
+Android 12Advantage Android 12 is newer and safer	vs	Android 8.0 Oreo
+5G Sub6Advantage The 5G Sub6 network is newer and faster	vs	4G LTE
+(5G Sub6) 3000 Mbps19 times Faster for surfing the internet and download files	vs	(4G LTE) 150 Mbps
+Face unlockAdvantage Sensors help you use the device	vs	Not supported
+3905 mAh47% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use	vs	2650 mAh
+LiPo: li-ion polymer (Removable)Advantage Removable battery can be replaced easily	vs	Li-Ion: lithium-ion (Non removable)
+20W100% 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
+2 slots (Dual-SIM) (dedicated slot)Advantage You can have more mobile carriers/operators on the same device.	vs	2 slots (Dual-SIM) (hybrid slot/shares the same microSD slot)
+5.1 + A2DP/LEAdvantage Bluetooth 5.1 + A2DP/LE is newer and faster	vs	4.2 + A2DP
+NFCAdvantage NFC allows you to make payments by approach quickly and securely	vs	Not supported
+USB 3.1 Type-C, USB OTG On-The-GoAdvantage Newer and faster USB version for transferring photos, mp3 or data.	vs	USB 2.0 Type-C, USB OTG On-The-Go
+IP54 certified, MIL-STD-810G military certifiedAdvantage Protection against water allows you talk to your friends in the rain, for example	vs	Not supported
225 grams (7.88 ounces)	vs	+144 grams (5.04 ounces)56% Lighter
10.5 millimeters (0.41 inches)	vs	+7.7 millimeters (0.3 inches)36% Thinner
Plastic body, glass front	vs	+Aluminum body, glass front, plastic backAdvantage More resistant material
409 PPI	vs	+424 PPI4% Crisper display of text, images and videos because it has more pixels per inch (ppi)
Type-C reversible connector	vs	+3.5mm jackAdvantage Headsets with 3.5mm Jack size are more common and easy to find in stores
Not supported	vs	+FM (RDS)Advantage The radio lets you listen to your songs and sports in general

23 Common items in both devices

TFT IPS LCD / TFT Super IPS+

60Hz

16 million

Dual-LED flash

Only digital zoom

PDAF: phase detection autofocus / LDAF/PDAF: laser/phase detection autofocus

OIS: Optical stabilization / OIS (4-axis): Optical stabilization

+16 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
	Fairphone 4 (256GB)	Asus Zenfone 3 (5.2 ZE520KL 32GB)
Change model		Choose the model
Model	Fairphone 4 (256GB)	Zenfone 3 (5.2 ZE520KL 32GB)
Other model names	Fairphone 4 (8GB RAM)	Zenfone 3 ZE520KL 3GB/32GB 5.2" Dual-SIM
Country or region available	(Europe)	(Global, International), Brazil, China, Philippines, India
Brand	Fairphone	Asus
Release date	10/25/2021, Announced: 9/30/2021	7/12/2016
Depth	10.5 millimeters (0.41 inches)	7.7 millimeters (0.3 inches)
Size (width x height)	75.5 x 162 millimeters (2.97 x 6.38 in)	73.98 x 146.87 millimeters (2.91 x 5.78 in)
Weight	225 grams (7.88 ounces)	144 grams (5.04 ounces)
Build, materials	Plastic body, glass front	Aluminum body, glass front, plastic back
Protection against water and others	IP54 certified: protection against dust and splashing. MIL-STD-810G military certified: salt, dust, humidity, rain, vibration, solar radiation, transport and thermal shock resistant.	Not supported
📲 Display
	Fairphone 4 (256GB)	Asus Zenfone 3 (5.2 ZE520KL 32GB)
Display type	TFT IPS LCD	TFT Super IPS+
Screen size	6.3" inches	5.2" inches
Screen-to-body ratio	~79.7% (screen-to-body ratio)	~68.6% (screen-to-body ratio)
Display resolution	1080x2340 pixels (19.5:9)	1080x1920 pixels (16:9)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch 10-points
Pixel density (dot pitch)	409 PPI	424 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass 5	Gorilla Glass 3
Refresh rate	60Hz	60Hz
Display features	Not supported	2.5D glass
🤖 Operating System
	Fairphone 4 (256GB)	Asus Zenfone 3 (5.2 ZE520KL 32GB)
System version	Android 11	Android 6.0.1 Marshmallow
Firmware update	Android 12	Android 8.0 Oreo
User Interface	feature not registered	ZenUI 3.0
⚙️ Processor
	Fairphone 4 (256GB)	Asus Zenfone 3 (5.2 ZE520KL 32GB)
Chipset	64bit: Qualcomm Snapdragon 750G (SM7225) (8nm)	64bit: Qualcomm Snapdragon 625 (MSM8953) (14nm)
CPU	Octa-core, 2 processors: 2x 2.2GHz Kryo 570 (Dual-core) 6x 1.8GHz Kryo 570 (Hexa-core)	Octa-core, 1 processor: 8x 2GHz ARM Cortex-A53 (Octa-core)
GPU graphical controller	Qualcomm Adreno 619 (800MHz)	Qualcomm Adreno 506 (650MHz)
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	Fairphone 4 (256GB)	Asus Zenfone 3 (5.2 ZE520KL 32GB)
RAM memory	8GB LPDDR4X	3GB LPDDR3
Internal storage	256GB (220GB available) UFS 2.1	32GB (24GB available) eMMC 5.1
External storage	Until 1TB microSD, microSDXC (dedicated slot)	Until 256GB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot)
📶 Mobile networks
	Fairphone 4 (256GB)	Asus Zenfone 3 (5.2 ZE520KL 32GB)
Dual-SIM	Dual-SIM Standby - Call active on one sim card (dedicated slot)	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	3000/1024 Mbps	150/50 Mbps
Network technology	2G, 3G, 4G, 5G	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	GSM 850/900/1800/1900
Primary 3G network	UMTS 850/900/1700/1900/2100	Global: UMTS 850/900/1900/2100 India: UMTS 850/900/2100 Brazil: UMTS 850/900/1700/1900/2100
Primary 4G network	LTE Cat15 (1, 2, 3, 4, 5, 7, 8, 12, 18, 19, 20, 28, 32, 71) TD-LTE (38, 40, 41) VoLTE	LTE Cat4 Global: LTE (1, 2, 3, 5, 7, 8, 20) India: LTE (1, 3, 5, 8) TD-LTE (40) Brazil: LTE (1, 2, 3, 4, 5, 7, 8, 17, 28)
Primary 5G network	SA/NSA/Sub6 (1, 3, 5, 7, 8, 20, 28, 38, 41, 71, 77, 78)	Not supported
Primary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE
Secondary 2G network	GSM 850/900/1800/1900	GSM 850/900/1800/1900
Secondary 3G network	UMTS 850/900/1700/1900/2100	Global: UMTS 850/900/1900/2100 India: UMTS 850/900/2100 Brazil: UMTS 850/900/1700/1900/2100
Secondary 4G network	LTE Cat15 (1, 2, 3, 4, 5, 7, 8, 12, 18, 19, 20, 28, 32, 71) TD-LTE (38, 40, 41) VoLTE	Not supported
Secondary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+
📷 Camera
	Fairphone 4 (256GB)	Asus Zenfone 3 (5.2 ZE520KL 32GB)
Back camera (main camera)	(dual camera) 48 megapixels 48MP ultrawide f/2.21/2"0.8µmPDAF+TOF3D	16 megapixels
Main camera resolution	8000x6000 pixels	4608x3456 pixels
Video recording (primary)	4K UHD (3840x2160) 30 fps	4K UHD (3840x2160) 30 fps
Flash	Dual-LED flash	Dual-LED flash
Focal aperture	f/1.6 (aperture)	f/2.0 (aperture)
Focal length	feature not registered	feature not registered
Sensor size	1/2" inches	feature not registered
Pixel size	0.8µm pixel	feature not registered
Autofocus	PDAF: phase detection autofocus	LDAF/PDAF: laser/phase detection autofocus
Touch focus	Supported	Supported
Image stabilization	OIS: Optical stabilization	OIS (4-axis): Optical stabilization
Zoom	Only digital zoom	Only digital zoom
Face/smile detection	Face detection, Smile detection	Face detection, Smile detection
BSI sensor	Supported	Not supported
HDR	HDR photo on both cameras	HDR photo on both cameras
Camera extras	4K@30fps 1080p@30/60fps	4K@30fps 1080p@30/60fps
📸 Front camera
	Fairphone 4 (256GB)	Asus Zenfone 3 (5.2 ZE520KL 32GB)
Front camera (secondary)	25 megapixels	8 megapixels
Front camera resolution	5760x4320 pixels	3264x2448 pixels
Video recording (secondary)	Full HD (1920x1080)	Full HD (1920x1080)
Front flash	Not supported	Not supported
Focal aperture	f/2.2 (aperture)	f/2.0 (aperture)
Focal length	feature not registered	feature not registered
Sensor size	1/2.78" inches	feature not registered
Pixel size	0.9µm pixel	feature not registered
🔉 Sound and multimedia
	Fairphone 4 (256GB)	Asus Zenfone 3 (5.2 ZE520KL 32GB)
Loudspeaker	Mono sound (not stereo)	Mono sound (not stereo) 24-bit/192kHz
Active noise cancellation	2 microphones or more	2 microphones or more
Radio	Not supported	FM (RDS)
TV	Not supported	Not supported
Video formats	MP4, H.265, H.264, H.263, XviD, MKV	MP4, H.264, H.263
Audio formats	MP3, WAV, WMA, eAAC+, FLAC	MP3, WAV, eAAC+, FLAC
🔌 Connectivity
	Fairphone 4 (256GB)	Asus Zenfone 3 (5.2 ZE520KL 32GB)
USB	USB 3.1 Type-C, USB OTG On-The-Go	USB 2.0 Type-C, USB OTG On-The-Go
Audio output	Type-C reversible connector	3.5mm jack
TV output	USB Type-C SlimPort®	USB Type-C (reversible)
Bluetooth	5.1 + A2DP/LE	4.2 + A2DP
WiFi	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) WiFi Direct, hotspot
DLNA	Not supported	Not supported
GPS	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou	A-GPS, GeoTagging, GLONASS, BeiDou
NFC	Supported	Not supported
Infrared port	Not supported	Not supported
🧭 Sensors
	Fairphone 4 (256GB)	Asus Zenfone 3 (5.2 ZE520KL 32GB)
Sensors	Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (side-mounted) Gyroscope Proximity sensor	Accelerometer Ambient light sensor Compass Fingerprint sensor (rear-mounted) Gyroscope Hall effect Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Fairphone 4 (256GB)	Asus Zenfone 3 (5.2 ZE520KL 32GB)
Battery type	LiPo: li-ion polymer (Removable)	Li-Ion: lithium-ion (Non removable)
Battery capacity	3905 mAh	2650 mAh
Charger, watts	20W Wired fast charging	10W (5V/2A) Wired charging
Inductive / wireless charging	Not supported	Not supported
Talk time autonomy	feature not registered	feature not registered
Standby	feature not registered	feature not registered
➕ Other features
	Fairphone 4 (256GB)	Asus Zenfone 3 (5.2 ZE520KL 32GB)
Call control	Voice dialing, Voice recorder, Voice commands	Voice dialing, Voice recorder, Voice commands
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, Green, Speckled Green • Modular phone with swappable components • iFixit: 10/10	• Colors: Sapphire Black, Moonlight White, Shimmer Gold
☢️ Radiation rate
	Fairphone 4 (256GB)	Asus Zenfone 3 (5.2 ZE520KL 32GB)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	feature not registered
SAR 2W/kg (Europe, UK, etc.)	0.49W/kg (head), 0.99W/kg (body)	feature not registered