Asus Zenfone 5Z (ZS621KL 256GB) vs Xiaomi Black Shark Helo (128GB/6GB)

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Side by side comparison between Asus Zenfone 5Z vs Xiaomi Black Shark Helo phones, differences, pros, cons and full specifications. What's the better?

10/27/2018 8:22 PM, updated: 10/3/2020 11:27 AM

Compare Xiaomi Black Shark Helo X Asus Zenfone 5Z (ZS621KL 256GB) 16Points

Specifications Compare Models Pictures

6.2"
IPS

1080x2246

12
MP

8mp

8GB
RAM

Octa-core

3300
mAh

(Non removable)

07Points Xiaomi Black Shark Helo (128GB/6GB) Compare Asus Zenfone 5Z X

Specifications Compare Models Pictures

6.01"
AMOLED

1080x2160

12
MP

20mp

6GB
RAM

Octa-core

4000
mAh

(Non removable)

What's the better phone? Asus Zenfone 5Z (ZS621KL 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!

16 Advantages Asus Zenfone 5Z (ZS621KL 256GB)	vs	7 Advantages Xiaomi Black Shark Helo (128GB/6GB)
+8GB LPDDR4X33% More RAM memory. Typically more responsive and better for multitasking.	vs	6GB LPDDR4X
+256GB (240GB available)118% More internal storage for applications and files	vs	128GB (110GB available)
+Until 1TB microSD, microSDXCAdvantage More external storage for files using memory cards	vs	Not supported
+165 grams (5.78 ounces)15% Lighter	vs	190 grams (6.65 ounces)
+7.9 millimeters (0.31 inches)10% Thinner	vs	8.7 millimeters (0.34 inches)
+1080x2246 pixels4% Higher resolution screen	vs	1080x2160 pixels
+6.2"3% Larger screen	vs	6.01"
+OIS (4-axis): Optical stabilizationAdvantage Image stabilization prevents blurry photos and helps in recording motion video	vs	EIS: Digital stabilization
+1/2.55" inches14% The larger sensor camera lets you take photos with better depth.	vs	1/2.9" inches
+Android 10Advantage Android 10 is newer and safer	vs	Android 9.0 Pie
+(4G LTE-A) 800 Mbps33% Faster for surfing the internet and download files	vs	(4G LTE-A) 600 Mbps
+Face unlockAdvantage Sensors help you use the device	vs	Not supported
+3.5mm jackAdvantage Headsets with 3.5mm Jack size are more common and easy to find in stores	vs	Type-C jack with 3.5mm jack adapter
+FMAdvantage The radio lets you listen to your songs and sports in general	vs	Not supported
+NFCAdvantage NFC allows you to make payments by approach quickly and securely	vs	Not supported
+Gorilla GlassAdvantage Protection against scratches on the screen lets you carry your phone with your keys	vs	Not supported
2.7GHz 64bit Octa-core	vs	+2.8GHz 64bit Octa-core5% More powerful processor, you can open your applications faster
TFT IPS LCD	vs	+AMOLEDAdvantage AMOLED display is brighter and more vivid
Not supported	vs	+HDR8Advantage The HDR8 display provides vibrant colors and more details
(dual camera) 12MP + 8MP	vs	+(dual camera) 12MP + 20MP60% Higher resolution main camera
Only digital zoom	vs	+Digital and optical zoomAdvantage The zoom allows for better focus and approach to take pictures
(front) 8MP	vs	+(front) 20MP149% Higher resolution secondary camera to take pictures and selfies
3300 mAh	vs	+4000 mAh21% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use

28 Common items in both devices

UFS 2.1

Aluminum frame, glass front/back / Aluminum body, glass front

60Hz

16 million

402 PPI

Dual-LED flash

PDAF: phase detection autofocus

+21 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 5Z (ZS621KL 256GB)	Xiaomi Black Shark Helo (128GB/6GB)
Change model		Choose the model
Model	Zenfone 5Z (ZS621KL 256GB)	Black Shark Helo (128GB/6GB)
Other model names	Asus Zenfone 5z 8GB RAM (ZS621KL), ASUS_Z01RD	黑鲨游戏手机 Helo (128GB + 6GB RAM), AWM-A0
Country or region available	India	(Global, International), China
Brand	Asus	Xiaomi
Release date	6/1/2018	11/10/2018
Depth	7.9 millimeters (0.31 inches)	8.7 millimeters (0.34 inches)
Size (width x height)	75.65 x 153 millimeters (2.98 x 6.02 in)	75.25 x 160 millimeters (2.96 x 6.3 in)
Weight	165 grams (5.78 ounces)	190 grams (6.65 ounces)
Build, materials	Aluminum frame, glass front/back	Aluminum body, glass front
Protection against water and others	Not supported	Not supported
📲 Display
	Asus Zenfone 5Z (ZS621KL 256GB)	Xiaomi Black Shark Helo (128GB/6GB)
Display type	TFT IPS LCD	AMOLED
Screen size	6.2" inches	6.01" inches
Screen-to-body ratio	~83.7% (screen-to-body ratio)	~77.4% (screen-to-body ratio)
Display resolution	1080x2246 pixels (18.7:9)	1080x2160 pixels (18:9)
Touchscreen	Capacitive Multitouch 10-points	Capacitive Multitouch
Pixel density (dot pitch)	402 PPI	402 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass	Not supported
Refresh rate	60Hz	60Hz
Display features	550nits[typ]	430nits[typ] HDR8
🤖 Operating System
	Asus Zenfone 5Z (ZS621KL 256GB)	Xiaomi Black Shark Helo (128GB/6GB)
System version	Android 8.0 Oreo	Android 8.0 Oreo
Firmware update	Android 10	Android 9.0 Pie
User Interface	feature not registered	feature not registered
⚙️ Processor
	Asus Zenfone 5Z (ZS621KL 256GB)	Xiaomi Black Shark Helo (128GB/6GB)
Chipset	64bit: Qualcomm Snapdragon 845 MSM8998 (10nm)	64bit: Qualcomm Snapdragon 845 MSM8998 (10nm)
CPU	Octa-core, 2 processors: 4x 2.7GHz Kryo 385 Gold (Quad-core) 4x 1.7GHz Kryo 385 Silver (Quad-core)	Octa-core, 2 processors: 4x 2.8GHz Kryo 385 Gold (Quad-core) 4x 1.8GHz Kryo 385 Silver (Quad-core)
GPU graphical controller	Qualcomm Adreno 630 710Mhz	Qualcomm Adreno 630 710Mhz
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	Asus Zenfone 5Z (ZS621KL 256GB)	Xiaomi Black Shark Helo (128GB/6GB)
RAM memory	8GB LPDDR4X	6GB LPDDR4X
Internal storage	256GB (240GB available) UFS 2.1	128GB (110GB available) UFS 2.1
External storage	Until 1TB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot)	Not supported
📶 Mobile networks
	Asus Zenfone 5Z (ZS621KL 256GB)	Xiaomi Black Shark Helo (128GB/6GB)
Dual-SIM	Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot)	Dual-SIM Standby - Call active on one sim card
SIM card	2 slots (Dual-SIM) nano-SIM (4FF)	2 slots (Dual-SIM) nano-SIM (4FF)
Maximum Download / Upload	800/100 Mbps	600/50 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	GSM 850/900/1800/1900	CDMA 800, GSM 850/900/1800/1900
Primary 3G network	UMTS 800/850/900	CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 850/900/1900/2100
Primary 4G network	LTE Cat15 (Bands 1,2,3,5,7,8,18,19,20,26,28) TD-LTE (Bands 38,39,40,41)	LTE Cat12 (1, 3, 4, 5, 7, 8, 20) TD-LTE (34, 38, 39, 40, 41)
Primary 5G network	Not supported	Not supported
Primary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A	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
Secondary 2G network	GSM 850/900/1800/1900	GSM 850/900/1800/1900
Secondary 3G network	Not supported	Not supported
Secondary 4G network	Not supported	Not supported
Secondary data network	GPRS, EDGE	GPRS, EDGE
📷 Camera
	Asus Zenfone 5Z (ZS621KL 256GB)	Xiaomi Black Shark Helo (128GB/6GB)
Back camera (main camera)	(dual camera) 12 megapixels 8MP ultrawide f/2.012mm1/4"1.12µmFF	(dual camera) 12 megapixels 20MP telephoto f/1.81.0µm2x-optical-zoom
Main camera resolution	4000x3000 pixels	4000x3000 pixels
Video recording (primary)	4K UHD (3840x2160) 30 fps	4K UHD (3840x2160) 30 fps
Flash	Dual-LED flash	Dual-LED flash
Focal aperture	f/1.8 (aperture)	f/1.8 (aperture)
Focal length	24mm lens	feature not registered
Sensor size	1/2.55" inches	1/2.9" inches
Pixel size	1.4µm pixel	1.25µm pixel
Autofocus	PDAF: phase detection autofocus	PDAF: phase detection autofocus
Touch focus	Supported	Supported
Image stabilization	OIS (4-axis): Optical stabilization	EIS: Digital stabilization
Zoom	Only digital zoom	Digital and optical zoom
Face/smile detection	Face detection, Smile detection	Face detection, Smile detection
BSI sensor	Not supported	Not supported
HDR	HDR photo on both cameras	HDR photo on both cameras
Camera extras	feature not registered	feature not registered
📸 Front camera
	Asus Zenfone 5Z (ZS621KL 256GB)	Xiaomi Black Shark Helo (128GB/6GB)
Front camera (secondary)	8 megapixels	20 megapixels
Front camera resolution	3264x2448 pixels	5952x3348 pixels
Video recording (secondary)	Full HD (1920x1080)	Full HD (1920x1080)
Front flash	Not supported	Not supported
Focal aperture	f/2.0 (aperture)	f/2.2 (aperture)
Focal length	24mm lens	feature not registered
Sensor size	1/4" inches	1/2.8" inches
Pixel size	1.12µm pixel	1µm pixel
🔉 Sound and multimedia
	Asus Zenfone 5Z (ZS621KL 256GB)	Xiaomi Black Shark Helo (128GB/6GB)
Loudspeaker	Supported	Supported
Active noise cancellation	2 microphones or more	2 microphones or more
Radio	FM	Not supported
TV	Not supported	Not supported
Video formats	MP4, H.265, H.264, H.263	MP4, H.265, H.264, H.263, XviD, MKV
Audio formats	MP3, OGG, eAAC+, FLAC	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	Asus Zenfone 5Z (ZS621KL 256GB)	Xiaomi Black Shark Helo (128GB/6GB)
USB	USB 2.0 Type-C, USB OTG On-The-Go	USB 2.0 Type-C, USB OTG On-The-Go
Audio output	3.5mm jack	Type-C jack with 3.5mm jack adapter
TV output	Not supported	Not supported
Bluetooth	5.0 + A2DP/LE	5.0 + A2DP/LE
WiFi	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) WiFi Direct, hotspot	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot
DLNA	Not supported	Not supported
GPS	A-GPS, GeoTagging, GLONASS, BeiDou	A-GPS, GeoTagging, GLONASS, BeiDou
NFC	Supported	Not supported
Infrared port	Not supported	Not supported
🧭 Sensors
	Asus Zenfone 5Z (ZS621KL 256GB)	Xiaomi Black Shark Helo (128GB/6GB)
Sensors	Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor	Accelerometer Ambient light sensor Compass Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Asus Zenfone 5Z (ZS621KL 256GB)	Xiaomi Black Shark Helo (128GB/6GB)
Battery type	Li-Ion: lithium-ion (Non removable)	Li-Ion: lithium-ion (Non removable)
Battery capacity	3300 mAh	4000 mAh
Charger, watts	18W (9V/2A) Wired fast charging	18W (9V/2A) Wired fast charging Quick Charge 3
Inductive / wireless charging	Not supported	Not supported
Talk time autonomy	25 hours (1 days)	feature not registered
Standby	feature not registered	feature not registered
➕ Other features
	Asus Zenfone 5Z (ZS621KL 256GB)	Xiaomi Black Shark Helo (128GB/6GB)
Call control	Voice dialing, Voice recorder	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: Midnight Blue, Meteor Silver • 2.5D curved glass screen • 95% DCI-P3 coverage • Supports glove touch • ASUS ZenUI 5.0 • 24-bit/192kHz audio • DTS sound (only headphones)	• Colors: Black • 100% DCI-P3 coverage display • Left game pad included
☢️ Radiation rate
	Asus Zenfone 5Z (ZS621KL 256GB)	Xiaomi Black Shark Helo (128GB/6GB)
SAR 1.6W/kg (USA, Mexico, etc.)	1.04W/kg (head), 0.37W/kg (body)	feature not registered
SAR 2W/kg (Europe, UK, etc.)	1.2W/kg (head), 1.477W/kg (body)	feature not registered