Apple iPhone 8 (256GB) vs Asus Zenfone Zoom (ZX551ML 128GB)

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Side by side comparison between Apple iPhone 8 vs Asus Zenfone Zoom (ZX551ML) phones, differences, pros, cons and full specifications. What's the better?

9/17/2017 10:14 PM, updated: 6/9/2025 11:01 PM

Compare Asus Zenfone Zoom (ZX551ML) X Apple iPhone 8 (256GB) 17Points

Specifications Compare Models Pictures

4.7"
IPS

750x1334

12
MP

7.1mp

2GB
RAM

Hexa-core

1821
mAh

(Non removable)

13Points Asus Zenfone Zoom (ZX551ML 128GB) Compare Apple iPhone 8 X

Specifications Compare Models Pictures

5.5"
IPS

1080x1920

13
MP

5mp

4GB
RAM

Quad-core

3000
mAh

(Non removable)

What's the better phone? Apple iPhone 8 (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!

17 Advantages Apple iPhone 8 (256GB)	vs	13 Advantages Asus Zenfone Zoom (ZX551ML 128GB)
+256GB (245GB available)101% More internal storage for applications and files	vs	128GB (122GB available)
+148 grams (5.18 ounces)25% Lighter	vs	185 grams (6.48 ounces)
+7.3 millimeters (0.29 inches)64% Thinner	vs	12 millimeters (0.47 inches)
+TFT LED-Backlit IPS LCDAdvantage TFT LED-Backlit IPS LCD display is brighter and more vivid	vs	TFT IPS LCD
+Quad-LED flashAdvantage The Quad-LED flash helps in dark places or in low light	vs	Dual-LED flash
+BSI sensorAdvantage The BSI sensor allows the entry of more light generating photos with more detail and brightness	vs	Not supported
+HDR photo/video on both camerasAdvantage The HDR technology produced photos with more detail in dark areas	vs	HDR photo only main camera
+f/1.8 (aperture)50% Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.	vs	f/2.7 (aperture)
+(front) 7.1MP44% Higher resolution secondary camera to take pictures and selfies	vs	(front) 5MP
+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)
+(4G LTE-A) 1024 Mbps6 times Faster for surfing the internet and download files	vs	(4G LTE) 150 Mbps
+BarometerAdvantage Sensors help you use the device	vs	Not supported
+Fingerprint sensor (front-mounted)Advantage Sensors help you use the device	vs	Not supported
+Active noise cancellationAdvantage More noise-canceling microphones allow for better quality in calls and audio for recorded videos	vs	Not supported
+5.0 + A2DP/LEAdvantage Bluetooth 5.0 + A2DP/LE is newer and faster	vs	4.0 + A2DP
+IP67 certifiedAdvantage Protection against water allows you talk to your friends in the rain, for example	vs	Not supported
2.39GHz 64bit Hexa-core (10nm)	vs	+2.5GHz 64bit Quad-core2% More powerful processor, you can open your applications faster
2GB LPDDR4X	vs	+4GB LPDDR3100% More RAM memory. Typically more responsive and better for multitasking.
Not supported	vs	+Until 128GB microSD, microSDXCAdvantage More external storage for files using memory cards
Aluminum frame, glass front/back	vs	+Aluminum frame, glass front, leather backAdvantage More resistant material
750x1334 pixels	vs	+1080x1920 pixels107% Higher resolution screen
326 PPI	vs	+401 PPI23% Crisper display of text, images and videos because it has more pixels per inch (ppi)
4.7"	vs	+5.5"17% Larger screen
(back) 12MP	vs	+(back) 13MP7% Higher resolution main camera
Only digital zoom	vs	+Digital and optical zoomAdvantage The zoom allows for better focus and approach to take pictures
2300000 apps (App Store)	vs	+3500000 apps (Google Play Store)52% More apps available to download and use
1821 mAh	vs	+3000 mAh65% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
15W	vs	+18W20% 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.
proprietary audio output	vs	+3.5mm jackAdvantage Headsets with 3.5mm Jack size are more common and easy to find in stores

21 Common items in both devices

16 million

PDAF: phase detection autofocus / LDAF: laser detection autofocus

OIS: Optical stabilization

4G LTE-A / 4G LTE

Capacitive

Multitouch

Accelerometer

+14 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
	iPhone 8 (256GB)	Asus Zenfone Zoom (ZX551ML 128GB)
Change model		Choose the model
Model	iPhone 8 (256GB)	Zenfone Zoom (ZX551ML 128GB)
Other model names	iPhone 8 A1863 (CDMA), iPhone 8 A1905 (GSM)	Asus Zenfone Zoom ZX551ML (4G), Asus ZX551ML
Country or region available	(Global, International)	(Latin America), (Europe)
Brand	Apple	Asus
Release date	9/22/2017, Announced: 9/12/2017	12/1/2015
Depth	7.3 millimeters (0.29 inches)	12 millimeters (0.47 inches)
Size (width x height)	67.3 x 138.4 millimeters (2.65 x 5.45 in)	78.8 x 158.9 millimeters (3.1 x 6.26 in)
Weight	148 grams (5.18 ounces)	185 grams (6.48 ounces)
Build, materials	Aluminum frame, glass front/back	Aluminum frame, glass front, leather back
Protection against water and others	IP67 certified: dust proof and waterproof over 1 meter and 30min	Not supported
📲 Display
	iPhone 8 (256GB)	Asus Zenfone Zoom (ZX551ML 128GB)
Display type	TFT LED-Backlit IPS LCD	TFT IPS LCD
Screen size	4.7" inches	5.5" inches
Screen-to-body ratio	~65.4% (screen-to-body ratio)	~66.6% (screen-to-body ratio)
Display resolution	750x1334 pixels (16:9)	1080x1920 pixels
Touchscreen	Capacitive Multitouch 10-points	Capacitive Multitouch
Pixel density (dot pitch)	326 PPI	401 PPI
Colors	16 million	16 million
Scratch-resistant glass	Scratch-resistant glass	Gorilla Glass 4
Refresh rate	60Hz	feature not registered
Display features	625nits[typ] Oleophobic coating	feature not registered
🤖 Operating System
	iPhone 8 (256GB)	Asus Zenfone Zoom (ZX551ML 128GB)
System version	iOS 11	Android 5.0.2 Lollipop
Firmware update	iOS 16	Android 6.0 Marshmallow
User Interface	feature not registered	feature not registered
⚙️ Processor
	iPhone 8 (256GB)	Asus Zenfone Zoom (ZX551ML 128GB)
Chipset	64bit: Apple A11 Bionic (10nm)	64bit: Intel Atom Z3590 (22nm)
CPU	Hexa-core, 2 processors: 2x 2.39GHz Monsoon (Dual-core) 4x 1.6GHz Mistral (Quad-core)	Quad-core, 1 processor: 4x 2.5GHz Intel Silvermont (Quad-core)
GPU graphical controller	Apple GPU (3-Core)	PowerVR G6430 MP4
Performance (benchmark)	AnTuTu: 237594 (v7) Geekbench: 10214 (v4.4) GFXBench: 20fps (ES 3.1 onscreen)	feature not registered
💽 Memory and storage
	iPhone 8 (256GB)	Asus Zenfone Zoom (ZX551ML 128GB)
RAM memory	2GB LPDDR4X	4GB LPDDR3
Internal storage	256GB (245GB available) NVMe (SSD)	128GB (122GB available)
External storage	Not supported	Until 128GB microSD, microSDXC (dedicated slot)
📶 Mobile networks
	iPhone 8 (256GB)	Asus Zenfone Zoom (ZX551ML 128GB)
Dual-SIM	Not supported	Not supported
SIM card	1 slot (Single-SIM) nano-SIM (4FF)	1 slot (Single-SIM) micro-SIM (3FF)
Maximum Download / Upload	1024/150 Mbps	150/50 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	CDMA 800/1900/2100 (A1864 model), GSM 850/900/1800/1900	GSM 850/900/1800/1900
Primary 3G network	A1864 model: CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 850/900/1700/1900/2100 A1897 model: UMTS 850/900/1700/1900/2100	UMTS 850/900/1900/2100
Primary 4G network	LTE Cat16 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 29, 30, 34, 66) TD-LTE (38, 39, 40, 41) VoLTE	LTE Cat4 (Bands 1, 2, 3, 5, 7, 8, 9, 18, 19, 28)
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+, LTE
Secondary 2G network	Not supported	Not supported
Secondary 3G network	Not supported	Not supported
Secondary 4G network	Not supported	Not supported
Secondary data network	Not supported	Not supported
📷 Camera
	iPhone 8 (256GB)	Asus Zenfone Zoom (ZX551ML 128GB)
Back camera (main camera)	12 megapixels	13 megapixels
Main camera resolution	4000x3000 pixels	4128x3096 pixels
Video recording (primary)	4K UHD (3840x2160) 60 fps	Full HD (1920x1080) 30 fps
Flash	Quad-LED flash	Dual-LED flash
Focal aperture	f/1.8 (aperture)	f/2.7 (aperture)
Focal length	28mm (lens)	28mm (lens)
Sensor size	1/3" inches	feature not registered
Pixel size	feature not registered	feature not registered
Autofocus	PDAF: phase detection autofocus	LDAF: laser detection autofocus
Touch focus	Supported	Supported
Image stabilization	OIS: Optical stabilization	OIS: Optical stabilization
Zoom	Only digital zoom	Digital and optical zoom
Face/smile detection	Face detection, Smile detection	Face detection, Smile detection
BSI sensor	Supported	Not supported
HDR	HDR photo/video on both cameras	HDR photo only main camera
Camera extras	1080p@240fps	feature not registered
📸 Front camera
	iPhone 8 (256GB)	Asus Zenfone Zoom (ZX551ML 128GB)
Front camera (secondary)	7.1 megapixels	5 megapixels
Front camera resolution	3072x2304 pixels	2560x1920 pixels
Video recording (secondary)	Full HD (1920x1080)	HD (1280x720)
Front flash	Not supported	Not supported
Focal aperture	f/2.2 (aperture)	f/2.0 (aperture)
Focal length	32mm (lens)	feature not registered
Sensor size	feature not registered	feature not registered
Pixel size	feature not registered	feature not registered
🔉 Sound and multimedia
	iPhone 8 (256GB)	Asus Zenfone Zoom (ZX551ML 128GB)
Loudspeaker	Stereo sound	Supported
Active noise cancellation	3 microphones	Not supported
Radio	Not supported	Not supported
TV	Not supported	Not supported
Video formats	MPEG4, H.265, H.264, MOV	MP4, H.264, H.263
Audio formats	MP3, WAV, AAX+, AIFF	MP3, WAV, eAAC+
🔌 Connectivity
	iPhone 8 (256GB)	Asus Zenfone Zoom (ZX551ML 128GB)
USB	USB 2.0 proprietary connector	MicroUSB 2.0, USB OTG On-The-Go
Audio output	proprietary audio output	3.5mm jack
TV output	Proprietary TV-out	Not supported
Bluetooth	5.0 + A2DP/LE	4.0 + A2DP
WiFi	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi 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, QZSS	A-GPS, GeoTagging, GLONASS, BeiDou
NFC	Supported	Supported
Infrared port	Not supported	Not supported
🧭 Sensors
	iPhone 8 (256GB)	Asus Zenfone Zoom (ZX551ML 128GB)
Sensors	Accelerometer Ambient light sensor Barometer Compass Fingerprint sensor (front-mounted) Gyroscope Proximity sensor	Accelerometer Ambient light sensor Compass Gyroscope Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	iPhone 8 (256GB)	Asus Zenfone Zoom (ZX551ML 128GB)
Battery type	Li-Ion: lithium-ion (Non removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	1821 mAh	3000 mAh
Charger, watts	15W Wired fast charging USB Power Delivery 2.0	18W Wired fast charging
Inductive / wireless charging	Qi wireless charging	feature not registered
Talk time autonomy	14 hours	feature not registered
Standby	feature not registered	feature not registered
➕ Other features
	iPhone 8 (256GB)	Asus Zenfone Zoom (ZX551ML 128GB)
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: Space Gray, Silver, Gold • Lightning to 3.5mm headphone jack adapter included • Apple Pay • AirDrop, iCloud, FaceTime, Siri	• Colors: Black, White • Asus ZenUI • Hoya camera sensor • Laser autofocus camera (0.03 seconds) • 3x optical zoom camera • Dual tone flash • Fast battery charging: 60% in 40min • Beidou GPS • 5GB Asus Webstorage
☢️ Radiation rate
	iPhone 8 (256GB)	Asus Zenfone Zoom (ZX551ML 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