Asus Zenfone 5Z (ZS621KL 64GB) vs Samsung Galaxy Quantum 2
Side by side comparison between Asus Zenfone 5Z vs Samsung Galaxy Quantum 2 phones, differences, pros, cons and full specifications. What's the better?
,
6.2"
IPS
IPS
1080x2246
12
MP
MP
8mp
6GB
RAM
RAM
Octa-core
3300
mAh
mAh
(Non removable)
vs
6.7"
AMOLED
AMOLED
1440x3200
64
MP
MP
10mp
6GB
RAM
RAM
Octa-core
4500
mAh
mAh
(Non removable)
What's the better phone? Samsung Galaxy Quantum 2
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!
8 Advantages 
17 Advantages | 30 Common items in both devices |
| 6GB LPDDR4X |
| Until 1TB microSD, microSDXC |
| 16 million |
| Only digital zoom |
| PDAF: phase detection autofocus |
| OIS (4-axis): Optical stabilization / OIS: Optical stabilization |
| HDR photo on both cameras / HDR photo/video on both cameras |
| +23 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 64GB) | Galaxy Quantum 2 | |
| Model | Zenfone 5Z (ZS621KL 64GB) | Galaxy Quantum 2 |
| Other model names | Asus Zenfone 5z 6GB RAM (ZS621KL), ASUS_Z01RD | Galaxy Quantum 2 5G (SM-A826S), 갤럭시 퀀텀2 (SKT) |
| Country or region available |  India |  South Korea |
| Brand | Asus | Samsung |
| Release date | 6/1/2018 | 4/23/2021, Announced: 4/13/2021 |
| Depth | 7.9 millimeters (0.31 inches) | 8.1 millimeters (0.32 inches) |
| Size (width x height) | 75.65 x 153 millimeters (2.98 x 6.02 in) | 73.8 x 161.9 millimeters (2.91 x 6.37 in) |
| Weight | 165 grams (5.78 ounces) | 176 grams (6.16 ounces) |
| Build, materials | Aluminum frame, glass front/back | Plastic body, glass front |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Asus Zenfone 5Z (ZS621KL 64GB) | Galaxy Quantum 2 | |
| Display type | TFT IPS LCD | Dynamic AMOLED |
| Screen size | 6.2" inches | 6.7" inches |
| Screen-to-body ratio | ~83.7% (screen-to-body ratio) | ~90.7% (screen-to-body ratio) |
| Display resolution | 1080x2246 pixels (18.7:9) | 1440x3200 pixels (20:9) |
| Touchscreen | Capacitive Multitouch 10-points | Capacitive Multitouch |
| Pixel density (dot pitch) | 402 PPI | 524 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass | Not supported |
| Refresh rate | 60Hz | 120Hz |
| Display features | 550nits[typ] | 1200nits[peak] Always-On Display |
🤖 Operating System | ||
| Asus Zenfone 5Z (ZS621KL 64GB) | Galaxy Quantum 2 | |
| System version | Android 8.0 Oreo | Android 11 |
| Firmware update | Android 10 | Android 13 |
| User Interface | feature not registered | One UI 3.1 / 4.1 / 5.0 |
⚙️ Processor | ||
| Asus Zenfone 5Z (ZS621KL 64GB) | Galaxy Quantum 2 | |
| Chipset | 64bit: Qualcomm Snapdragon 845 MSM8998 (10nm) | 64bit: Qualcomm Snapdragon 855+ (SM8150-AC) (7nm) |
| CPU | Octa-core, 2 processors: 4x 2.7GHz Kryo 385 Gold (Quad-core) 4x 1.7GHz Kryo 385 Silver (Quad-core) | Octa-core, 3 processors: 1x 2.96GHz Kryo 485 (Single-core) 3x 2.42GHz Kryo 485 (Triple-core) 4x 1.8GHz Kryo 485 (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 630 710Mhz | Qualcomm Adreno 640 (672MHz) |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Asus Zenfone 5Z (ZS621KL 64GB) | Galaxy Quantum 2 | |
| RAM memory | 6GB LPDDR4X | 6GB LPDDR4X |
| Internal storage | 64GB (51GB available) UFS 2.1 | 128GB (102GB available) UFS 3.0 |
| External storage | Until 1TB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot) | Until 1TB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Asus Zenfone 5Z (ZS621KL 64GB) | Galaxy Quantum 2 | |
| 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) nano-SIM (4FF) |
| Maximum Download / Upload | 800/100 Mbps | 2000/1024 Mbps |
| Network technology | 2G, 3G, 4G | 2G, 3G, 4G, 5G |
| 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 | UMTS 800/850/900 | UMTS 850/900/1700/1900/2100 |
| 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 Cat16 (1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 66) TD-LTE (38, 40, 41) VoLTE |
| Primary 5G network | Not supported | SA/NSA/Sub6 (78) |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA |
| 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 64GB) | Galaxy Quantum 2 | |
| Back camera (main camera) | (dual camera) 12 megapixels 8MP ultrawide f/2.012mm1/4"1.12µmFF | (triple camera) 64 megapixels 12MP ultrawide f/2.2123°1.12µm 5MP macro f/2.4 |
| Main camera resolution | 4000x3000 pixels | 10120x6328 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | 4K UHD (3840x2160) 30 fps |
| Flash | Dual-LED flash | LED flash |
| Focal aperture | f/1.8 (aperture) | f/1.8 (aperture) |
| Focal length | 24mm (lens) | 26mm (lens) |
| Sensor size | 1/2.55" inches | 1/1.72" inches |
| Pixel size | 1.4µm pixel | 0.8µm pixel |
| Autofocus | PDAF: phase detection autofocus | PDAF: phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | OIS (4-axis): Optical stabilization | OIS: Optical 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 on both cameras |
| Camera extras | feature not registered | 4K@30fps 1080p@30/60fps 1080p@240fps (slow motion) |
📸 Front camera | ||
| Asus Zenfone 5Z (ZS621KL 64GB) | Galaxy Quantum 2 | |
| Front camera (secondary) | 8 megapixels | 10 megapixels |
| Front camera resolution | 3264x2448 pixels | 3872x2592 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 | feature not registered |
| Pixel size | 1.12µm pixel | feature not registered |
🔉 Sound and multimedia | ||
| Asus Zenfone 5Z (ZS621KL 64GB) | Galaxy Quantum 2 | |
| Loudspeaker | Supported | Stereo sound |
| 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 64GB) | Galaxy Quantum 2 | |
| 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 reversible connector |
| TV output | Not supported | USB Type-C (reversible) |
| 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, GALILEO, BeiDou |
| NFC | Supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Asus Zenfone 5Z (ZS621KL 64GB) | Galaxy Quantum 2 | |
| Sensors | Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor | Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (under display) Gyroscope Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Asus Zenfone 5Z (ZS621KL 64GB) | Galaxy Quantum 2 | |
| Battery type | Li-Ion: lithium-ion (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 3300 mAh | 4500 mAh |
| Charger, watts | 18W (9V/2A) Wired fast charging | 25W Wired fast charging |
| 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 64GB) | Galaxy Quantum 2 | |
| Call control | Voice dialing, Voice recorder | Voice dialing, Voice recorder, Voice commands |
| 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, White, Violet |
☢️ Radiation rate | ||
| Asus Zenfone 5Z (ZS621KL 64GB) | Galaxy Quantum 2 | |
| 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 |