Apple iPhone 8 (256GB) vs Asus Zenfone 5Z (ZS621KL 64GB)
Side by side comparison between Apple iPhone 8 vs Asus Zenfone 5Z phones, differences, pros, cons and full specifications. What's the better?
,
4.7"
IPS
IPS
750x1334
12
MP
MP
7.1mp
2GB
RAM
RAM
Hexa-core
1821
mAh
mAh
(Non removable)
vs
6.2"
IPS
IPS
1080x2246
12
MP
MP
8mp
6GB
RAM
RAM
Octa-core
3300
mAh
mAh
(Non removable)
What's the better phone? Asus Zenfone 5Z (ZS621KL 64GB)
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!
10 Advantages 
17 Advantages | 27 Common items in both devices |
| Aluminum frame, glass front/back |
| 60Hz |
| 16 million |
| Only digital zoom |
| PDAF: phase detection autofocus |
| OIS: Optical stabilization / OIS (4-axis): Optical stabilization |
| HDR photo/video on both cameras / HDR photo on both cameras |
| +20 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 | ||
| iPhone 8 (256GB) | Asus Zenfone 5Z (ZS621KL 64GB) | |
| Model | iPhone 8 (256GB) | Zenfone 5Z (ZS621KL 64GB) |
| Other model names | iPhone 8 A1863 (CDMA), iPhone 8 A1905 (GSM) | Asus Zenfone 5z 6GB RAM (ZS621KL), ASUS_Z01RD |
| Country or region available |  (Global, International) |  India |
| Brand | Apple | Asus |
| Release date | 9/22/2017, Announced: 9/12/2017 | 6/1/2018 |
| Depth | 7.3 millimeters (0.29 inches) | 7.9 millimeters (0.31 inches) |
| Size (width x height) | 67.3 x 138.4 millimeters (2.65 x 5.45 in) | 75.65 x 153 millimeters (2.98 x 6.02 in) |
| Weight | 148 grams (5.18 ounces) | 165 grams (5.78 ounces) |
| Build, materials | Aluminum frame, glass front/back | Aluminum frame, glass front/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 5Z (ZS621KL 64GB) | |
| Display type | TFT LED-Backlit IPS LCD | TFT IPS LCD |
| Screen size | 4.7" inches | 6.2" inches |
| Screen-to-body ratio | ~65.4% (screen-to-body ratio) | ~83.7% (screen-to-body ratio) |
| Display resolution | 750x1334 pixels (16:9) | 1080x2246 pixels (18.7:9) |
| Touchscreen | Capacitive Multitouch 10-points | Capacitive Multitouch 10-points |
| Pixel density (dot pitch) | 326 PPI | 402 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Scratch-resistant glass | Gorilla Glass |
| Refresh rate | 60Hz | 60Hz |
| Display features | 625nits[typ] Oleophobic coating | 550nits[typ] |
🤖 Operating System | ||
| iPhone 8 (256GB) | Asus Zenfone 5Z (ZS621KL 64GB) | |
| System version | iOS 11 | Android 8.0 Oreo |
| Firmware update | iOS 16 | Android 10 |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| iPhone 8 (256GB) | Asus Zenfone 5Z (ZS621KL 64GB) | |
| Chipset | 64bit: Apple A11 Bionic (10nm) | 64bit: Qualcomm Snapdragon 845 MSM8998 (10nm) |
| CPU | Hexa-core, 2 processors: 2x 2.39GHz Monsoon (Dual-core) 4x 1.6GHz Mistral (Quad-core) | Octa-core, 2 processors: 4x 2.7GHz Kryo 385 Gold (Quad-core) 4x 1.7GHz Kryo 385 Silver (Quad-core) |
| GPU graphical controller | Apple GPU (3-Core) | Qualcomm Adreno 630 710Mhz |
| 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 5Z (ZS621KL 64GB) | |
| RAM memory | 2GB LPDDR4X | 6GB LPDDR4X |
| Internal storage | 256GB (245GB available) NVMe (SSD) | 64GB (51GB available) UFS 2.1 |
| External storage | Not supported | Until 1TB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot) |
📶 Mobile networks | ||
| iPhone 8 (256GB) | Asus Zenfone 5Z (ZS621KL 64GB) | |
| Dual-SIM | Not supported | Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot) |
| SIM card | 1 slot (Single-SIM) nano-SIM (4FF) | 2 slots (Dual-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 1024/150 Mbps | 800/100 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 800/850/900 |
| 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 Cat15 (Bands 1,2,3,5,7,8,18,19,20,26,28) TD-LTE (Bands 38,39,40,41) |
| 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+, TD-LTE, LTE, LTE-A |
| Secondary 2G network | Not supported | GSM 850/900/1800/1900 |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | Not supported | GPRS, EDGE |
📷 Camera | ||
| iPhone 8 (256GB) | Asus Zenfone 5Z (ZS621KL 64GB) | |
| Back camera (main camera) | 12 megapixels | (dual camera) 12 megapixels 8MP ultrawide f/2.012mm1/4"1.12µmFF |
| Main camera resolution | 4000x3000 pixels | 4000x3000 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 60 fps | 4K UHD (3840x2160) 30 fps |
| Flash | Quad-LED flash | Dual-LED flash |
| Focal aperture | f/1.8 (aperture) | f/1.8 (aperture) |
| Focal length | 28mm lens | 24mm lens |
| Sensor size | 1/3" inches | 1/2.55" inches |
| Pixel size | feature not registered | 1.4µm pixel |
| Autofocus | PDAF: phase detection autofocus | PDAF: 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/video on both cameras | HDR photo on both cameras |
| Camera extras | 1080p@240fps | feature not registered |
📸 Front camera | ||
| iPhone 8 (256GB) | Asus Zenfone 5Z (ZS621KL 64GB) | |
| Front camera (secondary) | 7.1 megapixels | 8 megapixels |
| Front camera resolution | 3072x2304 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 | 32mm lens | 24mm lens |
| Sensor size | feature not registered | 1/4" inches |
| Pixel size | feature not registered | 1.12µm pixel |
🔉 Sound and multimedia | ||
| iPhone 8 (256GB) | Asus Zenfone 5Z (ZS621KL 64GB) | |
| Loudspeaker | Stereo sound | Supported |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | Not supported | FM |
| TV | Not supported | Not supported |
| Video formats | MPEG4, H.265, H.264, MOV | MP4, H.265, H.264, H.263 |
| Audio formats | MP3, WAV, AAX+, AIFF | MP3, OGG, eAAC+, FLAC |
🔌 Connectivity | ||
| iPhone 8 (256GB) | Asus Zenfone 5Z (ZS621KL 64GB) | |
| USB | USB 2.0 proprietary connector | USB 2.0 Type-C, 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 | 5.0 + A2DP/LE |
| 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 5Z (ZS621KL 64GB) | |
| Sensors | Accelerometer Ambient light sensor Barometer Compass Fingerprint sensor (front-mounted) Gyroscope Proximity sensor | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| iPhone 8 (256GB) | Asus Zenfone 5Z (ZS621KL 64GB) | |
| Battery type | Li-Ion: lithium-ion (Non removable) | Li-Ion: lithium-ion (Non removable) |
| Battery capacity | 1821 mAh | 3300 mAh |
| Charger, watts | 15W Wired fast charging USB Power Delivery 2.0 | 18W (9V/2A) Wired fast charging |
| Inductive / wireless charging | Qi wireless charging | Not supported |
| Talk time autonomy | 14 hours | 25 hours (1 days) |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| iPhone 8 (256GB) | Asus Zenfone 5Z (ZS621KL 64GB) | |
| 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 • AirDrop, iCloud, FaceTime, Siri • Apple Pay • Lightning to 3.5mm headphone jack adapter included • Fast battery charging: 50% in 30min | • 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) |
☢️ Radiation rate | ||
| iPhone 8 (256GB) | Asus Zenfone 5Z (ZS621KL 64GB) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | 1.04W/kg (head), 0.37W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | 1.2W/kg (head), 1.477W/kg (body) |