Asus Zenfone 5Z (ZS621KL 256GB) vs Apple iPad Air 2 (WiFi 128GB)
Side by side comparison between Asus Zenfone 5Z vs Apple iPad Air 2 devices, differences, pros, cons and full specifications. What's the better?
,
6.2"
IPS
IPS
1080x2246
12
MP
MP
8mp
8GB
RAM
RAM
Octa-core
3300
mAh
mAh
(Non removable)
vs
9.7"
IPS
IPS
1536x2048
8
MP
MP
1.2mp
2GB
RAM
RAM
Triple-core
7340
mAh
mAh
(Non removable)
What's the better device? 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!
24 Advantages 
7 Advantages | 19 Common items in both devices |
| Aluminum frame, glass front/back / Aluminum body, glass front |
| 60Hz |
| 16 million |
| Only digital zoom |
| PDAF: phase detection autofocus / Autofocus |
| HDR photo on both cameras / HDR photo/video and HDR photo on front camera |
| Capacitive |
| +12 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 | ||
| Asus Zenfone 5Z (ZS621KL 256GB) | iPad Air 2 (WiFi 128GB) | |
| Model | Zenfone 5Z (ZS621KL 256GB) | iPad Air 2 (WiFi 128GB) |
| Other model names | Asus Zenfone 5z 8GB RAM (ZS621KL), ASUS_Z01RD | iPad Air 2 A1566 (WiFi), iPad 6 |
| Country or region available |  India |  (Global, International) |
| Brand | Asus | Apple |
| Release date | 6/1/2018 | 10/24/2014, Announced: 10/16/2014 |
| Depth | 7.9 millimeters (0.31 inches) | 6.1 millimeters (0.24 inches) |
| Size (width x height) | 75.65 x 153 millimeters (2.98 x 6.02 in) | 169.5 x 240 millimeters (6.67 x 9.45 in) |
| Weight | 165 grams (5.78 ounces) | 437 grams (15.3 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) | iPad Air 2 (WiFi 128GB) | |
| Display type | TFT IPS LCD | TFT LED-Backlit IPS LCD |
| Screen size | 6.2" inches | 9.7" inches |
| Screen-to-body ratio | ~83.7% (screen-to-body ratio) | ~71.6% (screen-to-body ratio) |
| Display resolution | 1080x2246 pixels (18.7:9) | 1536x2048 pixels (4:3) |
| Touchscreen | Capacitive Multitouch 10-points | Capacitive Multitouch 10-points |
| Pixel density (dot pitch) | 402 PPI | 264 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass | Scratch-resistant glass |
| Refresh rate | 60Hz | 60Hz |
| Display features | 550nits[typ] | Not supported |
🤖 Operating System | ||
| Asus Zenfone 5Z (ZS621KL 256GB) | iPad Air 2 (WiFi 128GB) | |
| System version | Android 8.0 Oreo | iOS 8.0 |
| Firmware update | Android 10 | iPadOS 13 |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Asus Zenfone 5Z (ZS621KL 256GB) | iPad Air 2 (WiFi 128GB) | |
| Chipset | 64bit: Qualcomm Snapdragon 845 MSM8998 (10nm) | 64bit: Apple A8X (20nm) |
| CPU | Octa-core, 2 processors: 4x 2.7GHz Kryo 385 Gold (Quad-core) 4x 1.7GHz Kryo 385 Silver (Quad-core) | Triple-core, 1 processor: 3x 1.5GHz Typhoon (Triple-core) |
| GPU graphical controller | Qualcomm Adreno 630 710Mhz | PowerVR GX6450 Rogue (8-core) |
| Performance (benchmark) | feature not registered | Basemark X: 29753 |
💽 Memory and storage | ||
| Asus Zenfone 5Z (ZS621KL 256GB) | iPad Air 2 (WiFi 128GB) | |
| RAM memory | 8GB LPDDR4X | 2GB LPDDR3 |
| Internal storage | 256GB (240GB available) UFS 2.1 | 128GB (117GB available) |
| External storage | Until 1TB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot) | Not supported |
📶 Mobile networks | ||
| Asus Zenfone 5Z (ZS621KL 256GB) | iPad Air 2 (WiFi 128GB) | |
| 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) | Not supported |
| Maximum Download / Upload | 800/100 Mbps | feature not registered |
| Network technology | 2G, 3G, 4G | feature not registered |
| Frequency, bands | Expand band details Collapse details | |
| GSM MHz band | Quad-Band 850/900/1800/1900 | Not supported |
| Primary 2G network | GSM 850/900/1800/1900 | Not supported |
| Primary 3G network | UMTS 800/850/900 | Not supported |
| Primary 4G network | LTE Cat15 (Bands 1,2,3,5,7,8,18,19,20,26,28) 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 | Not supported |
| 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 5Z (ZS621KL 256GB) | iPad Air 2 (WiFi 128GB) | |
| Back camera (main camera) | (dual camera) 12 megapixels 8MP ultrawide f/2.012mm1/4"1.12µmFF | 8 megapixels |
| Main camera resolution | 4000x3000 pixels | 3264x2448 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | Dual-LED flash | Not supported |
| Focal aperture | f/1.8 (aperture) | f/2.4 (aperture) |
| Focal length | 24mm lens | 31mm lens |
| Sensor size | 1/2.55" inches | feature not registered |
| Pixel size | 1.4µm pixel | 1.12µm pixel |
| Autofocus | PDAF: phase detection autofocus | Autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | OIS (4-axis): Optical stabilization | EIS: Digital stabilization |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Not supported | Supported |
| HDR | HDR photo on both cameras | HDR photo/video and HDR photo on front camera |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Asus Zenfone 5Z (ZS621KL 256GB) | iPad Air 2 (WiFi 128GB) | |
| Front camera (secondary) | 8 megapixels | 1.2 megapixels |
| Front camera resolution | 3264x2448 pixels | 1280x960 pixels |
| Video recording (secondary) | Full HD (1920x1080) | HD (1280x720) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.0 (aperture) | f/2.2 (aperture) |
| Focal length | 24mm lens | 31mm lens |
| Sensor size | 1/4" inches | feature not registered |
| Pixel size | 1.12µm pixel | feature not registered |
🔉 Sound and multimedia | ||
| Asus Zenfone 5Z (ZS621KL 256GB) | iPad Air 2 (WiFi 128GB) | |
| 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.264, MOV |
| Audio formats | MP3, OGG, eAAC+, FLAC | MP3, WAV, eAAC+ |
🔌 Connectivity | ||
| Asus Zenfone 5Z (ZS621KL 256GB) | iPad Air 2 (WiFi 128GB) | |
| USB | USB 2.0 Type-C, USB OTG On-The-Go | MicroUSB 2.0 |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Proprietary TV-out |
| Bluetooth | 5.0 + A2DP/LE | 4.0 + A2DP |
| 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) |
| DLNA | Not supported | Supported |
| GPS | A-GPS, GeoTagging, GLONASS, BeiDou | Not supported |
| NFC | Supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Asus Zenfone 5Z (ZS621KL 256GB) | iPad Air 2 (WiFi 128GB) | |
| Sensors | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor | Accelerometer Ambient light sensor Barometer Compass Fingerprint sensor (front-mounted) Gyroscope |
| Vibrating alert | Supported | Not supported |
🔋 Battery | ||
| Asus Zenfone 5Z (ZS621KL 256GB) | iPad Air 2 (WiFi 128GB) | |
| Battery type | Li-Ion: lithium-ion (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 3300 mAh | 7340 mAh |
| Charger, watts | 18W (9V/2A) Wired fast charging | Wired charging |
| Inductive / wireless charging | Not supported | Not supported |
| Talk time autonomy | 25 hours (1 days) | 10 hours |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Asus Zenfone 5Z (ZS621KL 256GB) | iPad Air 2 (WiFi 128GB) | |
| Call control | Voice dialing, Voice recorder | Not supported |
| Messaging | SMS (T9), MMS, E-mail, Push mail | E-mail, Push mail |
| Hands-free calling | Supported | Supported |
| Video calling | Supported | Supported |
| Ringtones | Polyphonic and customized | feature not registered |
| 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: Space Gray, Silver, Gold • Retina display • Oleophobic coating • AirDrop file sharing • iCloud service • iCloud Keychain • FaceTime HD |
☢️ Radiation rate | ||
| Asus Zenfone 5Z (ZS621KL 256GB) | iPad Air 2 (WiFi 128GB) | |
| 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 |