Asus Zenfone 4 (ZE554KL 64GB/4GB NFC) vs HTC S620

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Side by side comparison between Asus Zenfone 4 vs HTC S620 phones, differences, pros, cons and full specifications. What's the better?

10/18/2017 7:26 PM, updated: 6/19/2025 9:16 AM

Compare HTC S620 X Asus Zenfone 4 (ZE554KL 64GB/4GB NFC) 37Points

Specifications Compare Models Pictures

5.5"
IPS

1080x1920

12.2
MP

8mp

4GB
RAM

Octa-core

3300
mAh

(Non removable)

02Points HTC S620 Compare Asus Zenfone 4 X

Specifications Compare Models Pictures

2.4"
TFT

240x320

1.3
MP

64MB
RAM

Single-core

960
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!

37 Advantages Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)	vs	2 Advantages HTC S620
+2.2GHz 64bit Octa-core21 times More powerful processor, you can open your applications faster	vs	200MHz 32bit Single-core
+4GB LPDDR4X63 times More RAM memory. Typically more responsive and better for multitasking.	vs	64MB SDRAM
+64GB (52GB available)691 times More internal storage for applications and files	vs	128MB (77MB available)
+Until 256GB microSD, microSDXC127 times More external storage for files using memory cards	vs	Until 2GB microSD
+7.5 millimeters (0.3 inches)71% Thinner	vs	12.8 millimeters (0.5 inches)
+Aluminum frame, glass front/backAdvantage More resistant material	vs	Plastic body
+TFT IPS LCDAdvantage TFT IPS LCD display is brighter and more vivid	vs	TFT LCD
+16 million245 times More colors on the screen is better quality images and videos	vs	65 thousand
+1080x1920 pixels26 times Higher resolution screen	vs	240x320 pixels
+401 PPI140% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	167 PPI
+5.5"129% Larger screen	vs	2.4"
+(dual camera) 12.2MP + 8MP14 times Higher resolution main camera	vs	(back) 1.3MP
+LED flashAdvantage The LED flash helps in dark places or in low light	vs	Not supported
+PDAF: phase detection autofocusAdvantage Best autofocus type for taking pictures	vs	Not supported
+OIS (4-axis): Optical stabilizationAdvantage Image stabilization prevents blurry photos and helps in recording motion video	vs	Not supported
+HDR photo on both camerasAdvantage The HDR technology produced photos with more detail in dark areas	vs	Not supported
+(front) 8MPAdvantage A front-camera is best for taking selfies	vs	Not supported
+4K UHD (3840x2160)326 times More image quality for recording videos with the primary camera	vs	QCIF (176x144)
+3500000 apps (Google Play Store)69999 times More apps available to download and use	vs	50 apps (Windows Mobile)
+4G LTE-AAdvantage The 4G LTE-A network is newer and faster	vs	2G EDGE
+(4G LTE-A) 600 Mbps2541 times Faster for surfing the internet and download files	vs	(2G EDGE) 0.236 Mbps
+Capacitive MultitouchAdvantage The touch screen facilitates the use of the device	vs	Not supported
+Accelerometer, Proximity sensor, Compass, Ambient light sensor, Gyroscope, Fingerprint sensor, Hall effectAdvantage Sensors help you use the device	vs	Not supported
+3300 mAh2 times Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use	vs	960 mAh
+Video callingAdvantage The video calling allows to make calls with voice and video	vs	Not supported
+2 slots (Dual-SIM) (hybrid slot/shares the same microSD slot)Advantage You can have more mobile carriers/operators on the same device.	vs	1 slot (Single-SIM) (dedicated slot)
+3.5mm jackAdvantage Headsets with 3.5mm Jack size are more common and easy to find in stores	vs	proprietary audio output
+Active noise cancellationAdvantage More noise-canceling microphones allow for better quality in calls and audio for recorded videos	vs	Not supported
+FMAdvantage The radio lets you listen to your songs and sports in general	vs	Not supported
+A-GPS, GeoTagging, GLONASS, BeiDouAdvantage It's harder to lose yourself in the city with GPS on your device	vs	Not supported
+802.11 a/b/g/n/ac [wifi5]Advantage WiFi 802.11 a/b/g/n/ac [wifi5] is newer and faster	vs	802.11 b/g [wifi3]
+5.0 + A2DP/LEAdvantage Bluetooth 5.0 + A2DP/LE is newer and faster	vs	2.0 + A2DP
+NFCAdvantage NFC allows you to make payments by approach quickly and securely	vs	Not supported
+USB 2.0 Type-C reversible connectorAdvantage Newer and faster USB version for transferring photos, mp3 or data.	vs	Mini-USB 1.1 (Mini-B)
+Type-CAdvantage Reversible connector, you can stick in a USB-C cable any which way; either side is up.	vs	Mini-USB 1.1 (Mini-B)
+HTML, XHTML, HTML5Advantage Better sites viewing on the internet	vs	WAP, HTML
+Gorilla Glass 3Advantage Protection against scratches on the screen lets you carry your phone with your keys	vs	Not supported
165 grams (5.78 ounces)	vs	+130 grams (4.55 ounces)27% Lighter
LiPo: li-ion polymer (Non removable)	vs	+Li-Ion: lithium-ion (Removable)Advantage Removable battery can be replaced easily

3 Common items in both devices

Only digital zoom

Hands-free calling

Vibrating alert

+ 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
	Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)	HTC S620
Change model
Model	Zenfone 4 (ZE554KL 64GB/4GB NFC)	HTC S620
Other model names	Asus Zenfone 4 (NFC version) Snapdragon 630 (4GB RAM)	HTC S620, HTC Excalibur 100
Country or region available	(Europe), South Africa, China, USA, Hong Kong, Taiwan	(Global, International)
Brand	Asus	HTC
Release date	10/1/2017	10/1/2006
Depth	7.5 millimeters (0.3 inches)	12.8 millimeters (0.5 inches)
Size (width x height)	75.2 x 155.4 millimeters (2.96 x 6.12 in)	62.5 x 111.5 millimeters (2.46 x 4.39 in)
Weight	165 grams (5.78 ounces)	130 grams (4.55 ounces)
Build, materials	Aluminum frame, glass front/back	Plastic body
Protection against water and others	Not supported	Not supported
📲 Display
	Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)	HTC S620
Display type	TFT IPS LCD	TFT LCD
Screen size	5.5" inches	2.4" inches
Screen-to-body ratio	~71.4% (screen-to-body ratio)	~25.6% (screen-to-body ratio)
Display resolution	1080x1920 pixels	240x320 pixels
Touchscreen	Capacitive Multitouch 10-points	Not supported
Pixel density (dot pitch)	401 PPI	167 PPI
Colors	16 million	65 thousand
Scratch-resistant glass	Gorilla Glass 3	Not supported
Refresh rate	feature not registered	feature not registered
Display features	feature not registered	Not supported
🤖 Operating System
	Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)	HTC S620
System version	Android 7.1.1 Nougat	Windows Mobile 5.0
Firmware update	feature not registered	feature not registered
User Interface	feature not registered	feature not registered
⚙️ Processor
	Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)	HTC S620
Chipset	64bit: Qualcomm Snapdragon 630 SDM630 (14nm)	32bit: Texas Instruments OMAP 850
CPU	Octa-core, 2 processors: 4x 2.2GHz ARM Cortex-A53 (Quad-core) 4x 1.8GHz ARM Cortex-A53 (Quad-core)	Single-core, 1 processor: 1x 200MHz ARM926EJ-S (Single-core)
GPU graphical controller	Qualcomm Adreno 508	feature not registered
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)	HTC S620
RAM memory	4GB LPDDR4X	64MB SDRAM
Internal storage	64GB (52GB available)	128MB (77MB available)
External storage	Until 256GB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot)	Until 2GB microSD (dedicated slot)
📶 Mobile networks
	Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)	HTC S620
Dual-SIM	Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot)	Not supported
SIM card	2 slots (Dual-SIM) nano-SIM (4FF)	1 slot (Single-SIM) Standard mini-SIM (2FF)
Maximum Download / Upload	600/150 Mbps	0.236 Mbps
Network technology	2G, 3G, 4G	2G
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	China 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	Not supported
Primary 4G network	LTE 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)	Not supported
Primary 5G network	Not supported	Not supported
Primary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A	CSD, GPRS, EDGE
Secondary 2G network	GSM 850/900/1800/1900	Not supported
Secondary 3G network	Not supported	Not supported
Secondary 4G network	Not supported	Not supported
Secondary data network	GPRS, EDGE	Not supported
📷 Camera
	Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)	HTC S620
Back camera (main camera)	(dual camera) 12.2 megapixels 8MP 12mm	1.3 megapixels
Main camera resolution	4032x3024 pixels	1280x1024 pixels
Video recording (primary)	4K UHD (3840x2160) 30 fps	QCIF (176x144) 10 fps
Flash	LED flash	Not supported
Focal aperture	f/1.8 (aperture)	feature not registered
Focal length	25mm (lens)	feature not registered
Sensor size	1/2.55" inches	feature not registered
Pixel size	1.4µm pixel	feature not registered
Autofocus	PDAF: phase detection autofocus	Not supported
Touch focus	Supported	Not supported
Image stabilization	OIS (4-axis): Optical stabilization	Not supported
Zoom	Only digital zoom	Only digital zoom
Face/smile detection	Face detection, Smile detection	Not supported
BSI sensor	Not supported	Not supported
HDR	HDR photo on both cameras	Not supported
Camera extras	feature not registered	feature not registered
📸 Front camera
	Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)	HTC S620
Front camera (secondary)	8 megapixels	Not supported
Front camera resolution	3264x2448 pixels	Not supported
Video recording (secondary)	Full HD (1920x1080)	Not supported
Front flash	Not supported	Not supported
Focal aperture	f/2.0 (aperture)	feature not registered
Focal length	24mm (lens)	feature not registered
Sensor size	feature not registered	feature not registered
Pixel size	feature not registered	feature not registered
🔉 Sound and multimedia
	Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)	HTC S620
Loudspeaker	Supported	Mono sound (not stereo)
Active noise cancellation	2 microphones or more	1 microphone
Radio	FM	Not supported
TV	Not supported	Not supported
Video formats	MP4, H.265, H.264, H.263	MPEG4, 3GP
Audio formats	MP3, WAV, OGG, eAAC+	MP3, AAC
🔌 Connectivity
	Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)	HTC S620
USB	USB 2.0 Type-C reversible connector	Mini-USB 1.1 (Mini-B)
Audio output	3.5mm jack	proprietary audio output
TV output	Not supported	Not supported
Bluetooth	5.0 + A2DP/LE	2.0 + A2DP
WiFi	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot	802.11 b/g [wifi3] (2.4GHz)
DLNA	Not supported	Not supported
GPS	A-GPS, GeoTagging, GLONASS, BeiDou	Not supported
NFC	Supported	Not supported
Infrared port	Not supported	Not supported
🧭 Sensors
	Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)	HTC S620
Sensors	Accelerometer Ambient light sensor Compass Fingerprint sensor Gyroscope Hall effect Proximity sensor	Not supported
Vibrating alert	Supported	Supported
🔋 Battery
	Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)	HTC S620
Battery type	LiPo: li-ion polymer (Non removable)	Li-Ion: lithium-ion (Removable)
Battery capacity	3300 mAh	960 mAh
Charger, watts	10W (5V/2A) Wired charging	Wired charging
Inductive / wireless charging	feature not registered	Not supported
Talk time autonomy	30 hours (1.3 days)	5 hours
Standby	552 hours (23 days)	220 hours (9.2 days)
➕ Other features
	Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)	HTC S620
Call control	Voice dialing, Voice recorder	Voice recorder
Messaging	SMS (T9), MMS, E-mail, Push mail	SMS, MMS, E-mail
Hands-free calling	Supported	Supported
Video calling	Supported	Not supported
Ringtones	Polyphonic and customized	Polyphonic and customized
Web browser	HTML, XHTML, HTML5	WAP, HTML
Antenna	Internal antenna	Internal antenna
Qwerty physical keyboard	Not supported	Fixed QWERTY keyboard
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: Black • HTC JOGGR touch • Pocket Office • Java framework
☢️ Radiation rate
	Asus Zenfone 4 (ZE554KL 64GB/4GB NFC)	HTC S620
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