Samsung Galaxy S21 FE (SM-G9900 256GB) vs Asus Zenfone 4 Selfie Pro (ZD552KL 64GB/3GB)
Side by side comparison between Samsung Galaxy S21 FE vs Asus Zenfone 4 Selfie Pro phones, differences, pros, cons and full specifications. What's the better?
,
6.4"
AMOLED
AMOLED
1080x2400
12.2
MP
MP
32mp
8GB
RAM
RAM
Octa-core
4500
mAh
mAh
(Non removable)
vs
5.5"
AMOLED
AMOLED
1080x1920
16
MP
MP
12mp
3GB
RAM
RAM
Octa-core
3000
mAh
mAh
(Non removable)
What's the better phone? Samsung Galaxy S21 FE (SM-G9900 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!
27 Advantages 
6 Advantages | 22 Common items in both devices |
| 16 million |
| PDAF: phase detection autofocus |
| HDR photo/video on both cameras / HDR photo on both cameras |
| 4K UHD (3840x2160) |
| (front) 4K UHD (3840x2160) |
| Capacitive |
| Multitouch |
| +15 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 | ||
| Galaxy S21 FE (SM-G9900 256GB) | Asus Zenfone 4 Selfie Pro (ZD552KL 64GB/3GB) | |
| Model | Galaxy S21 FE (SM-G9900 256GB) | Zenfone 4 Selfie Pro (ZD552KL 64GB/3GB) |
| Other model names | Galaxy S21 FE 5G SM-G9900 Dual-SIM (Exynos) | Asus Zenfone 4 Selfie Pro ZD552KL (64GB + 3GB RAM) |
| Country or region available |  China |   (Europe), Thailand |
| Brand | Samsung | Asus |
| Release date | 1/7/2022, Announced: 1/4/2022 | 9/14/2017 |
| Depth | 7.9 millimeters (0.31 inches) | 6.85 millimeters (0.27 inches) |
| Size (width x height) | 74.5 x 155.7 millimeters (2.93 x 6.13 in) | 74.8 x 154 millimeters (2.94 x 6.06 in) |
| Weight | 177 grams (6.2 ounces) | 147 grams (5.15 ounces) |
| Build, materials | Aluminum body, glass front, plastic back | feature not registered |
| Protection against water and others | IP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant | Not supported |
📲 Display | ||
| Galaxy S21 FE (SM-G9900 256GB) | Asus Zenfone 4 Selfie Pro (ZD552KL 64GB/3GB) | |
| Display type | Dynamic AMOLED | AMOLED |
| Screen size | 6.4" inches | 5.5" inches |
| Screen-to-body ratio | ~85.3% (screen-to-body ratio) | ~72.4% (screen-to-body ratio) |
| Display resolution | 1080x2400 pixels (20:9) | 1080x1920 pixels |
| Touchscreen | Capacitive Multitouch 10-points | Capacitive Multitouch 10-points |
| Pixel density (dot pitch) | 411 PPI | 401 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass Victus | Gorilla Glass 5 |
| Refresh rate | 120Hz | feature not registered |
| Display features | 1300nits[peak] HDR10+ Always-On Display | feature not registered |
🤖 Operating System | ||
| Galaxy S21 FE (SM-G9900 256GB) | Asus Zenfone 4 Selfie Pro (ZD552KL 64GB/3GB) | |
| System version | Android 12 | Android 7.0 Nougat |
| Firmware update | Android 15 | feature not registered |
| User Interface | One UI 4.1 / 5.1 / 6.0 / 7.0 | feature not registered |
⚙️ Processor | ||
| Galaxy S21 FE (SM-G9900 256GB) | Asus Zenfone 4 Selfie Pro (ZD552KL 64GB/3GB) | |
| Chipset | 64bit: Samsung Exynos 2100 (5nm) | 64bit: Qualcomm Snapdragon 625 MSM8953 (14nm) |
| CPU | Octa-core, 3 processors: 1x 2.9GHz ARM Cortex-X1 (Single-core) 3x 2.8GHz ARM Cortex-A78 (Triple-core) 4x 2.2GHz ARM Cortex-A55 (Quad-core) | Octa-core, 1 processor: 8x 2GHz ARM Cortex-A53 (Octa-core) |
| GPU graphical controller | ARM Mali-G78 MP14 (854MHz) | Qualcomm Adreno 506 650Mhz |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Galaxy S21 FE (SM-G9900 256GB) | Asus Zenfone 4 Selfie Pro (ZD552KL 64GB/3GB) | |
| RAM memory | 8GB LPDDR5 | 3GB LPDDR3 |
| Internal storage | 256GB (215GB available) UFS 3.1 | 64GB (54GB available) eMMC 5.1 |
| External storage | Not supported | Until 256GB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot) |
📶 Mobile networks | ||
| Galaxy S21 FE (SM-G9900 256GB) | Asus Zenfone 4 Selfie Pro (ZD552KL 64GB/3GB) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card | Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot) |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 2 slots (Dual-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 2000/1024 Mbps | 150/50 Mbps |
| Network technology | 2G, 3G, 4G, 5G | 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, GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | CDMA2000 1xEV-DO UMTS 850/900/1900/2100 | Global version: UMTS 850/900/2100 USA/Brazil version: UMTS 850/900/1700/1900/2100 Taiwan/Japan/Hong Kong version: UMTS 800/850/900/1900/2100 |
| Primary 4G network | LTE Cat20 (1, 3, 3, 4, 5, 7, 8, 12, 20, 28) TD-LTE (34, 38, 39, 40, 41) VoLTE | LTE Cat4 Global version: LTE (Bands 1,3,5,7,8,20) TD-LTE (Bands 40) USA/Brazil version: LTE (Bands 1,2,3,4,5,7,8,12,17,28) Taiwan/Japan/Hong Kong version: LTE (Bands 1,3,5,7,8,18,19,26,28) TD-LTE (Bands 38,41) |
| Primary 5G network | SA/NSA/Sub6 (1, 3, 5, 8, 28, 41, 78, 79) | Not supported |
| Primary data network | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE |
| Secondary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Secondary 3G network | UMTS 850/900/1900/2100 | Not supported |
| Secondary 4G network | LTE Cat20 (1, 3, 3, 4, 5, 7, 8, 12, 20, 28) TD-LTE (34, 38, 39, 40, 41) VoLTE | Not supported |
| Secondary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA | GPRS, EDGE |
📷 Camera | ||
| Galaxy S21 FE (SM-G9900 256GB) | Asus Zenfone 4 Selfie Pro (ZD552KL 64GB/3GB) | |
| Back camera (main camera) | (triple camera) 12.2 megapixels 12MP ultrawide f/2.2123°13mm1/3"1.12µm 8MP telephoto f/2.476mm1/4.5"1.0µmPDAFOIS3x-optical-zoom | 16 megapixels |
| Main camera resolution | 4032x3024 pixels | 4608x3456 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 60 fps | 4K UHD (3840x2160) 30 fps |
| Flash | LED flash | Dual-LED on main camera and LED on front camera |
| Focal aperture | f/1.8 (aperture) | feature not registered |
| Focal length | 26mm (lens) | 26mm (lens) |
| Sensor size | 1/1.76" inches | feature not registered |
| Pixel size | 1.8µm pixel | feature not registered |
| Autofocus | PDAF: phase detection autofocus | PDAF: phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | OIS: Optical stabilization | EIS: Digital stabilization |
| Zoom | Digital and optical 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 | 4K@30/60fps 1080p@30/60fps 1080p@240fps (slow motion) 720p@960fps (slow motion) | feature not registered |
📸 Front camera | ||
| Galaxy S21 FE (SM-G9900 256GB) | Asus Zenfone 4 Selfie Pro (ZD552KL 64GB/3GB) | |
| Front camera (secondary) | 32 megapixels | (dual front camera) 12 megapixels 8MP 12mm120° |
| Front camera resolution | 6528x4896 pixels | 4000x3000 pixels |
| Video recording (secondary) | 4K UHD (3840x2160) | 4K UHD (3840x2160) |
| Front flash | Not supported | LED |
| Focal aperture | f/2.2 (aperture) | f/1.8 (aperture) |
| Focal length | 26mm (lens) | 25mm (lens) |
| Sensor size | 1/2.74" inches | 1/2.55" inches |
| Pixel size | 0.8µm pixel | 1.4µm pixel |
🔉 Sound and multimedia | ||
| Galaxy S21 FE (SM-G9900 256GB) | Asus Zenfone 4 Selfie Pro (ZD552KL 64GB/3GB) | |
| Loudspeaker | Stereo sound 32-bit/384kHz Dolby Atmos Tuned by AKG | Supported |
| Active noise cancellation | 2 microphones | 2 microphones or more |
| Radio | Not supported | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD, MKV | MP4, H.264, H.263 |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, OGG, eAAC+, FLAC |
🔌 Connectivity | ||
| Galaxy S21 FE (SM-G9900 256GB) | Asus Zenfone 4 Selfie Pro (ZD552KL 64GB/3GB) | |
| USB | USB 3.2 Type-C, USB OTG On-The-Go | MicroUSB 2.0 |
| Audio output | Type-C reversible connector | 3.5mm jack |
| TV output | USB Type-C SlimPort® | Not supported |
| Bluetooth | 5.0 + A2DP/LE | 4.2 + A2DP |
| WiFi | 802.11 a/b/g/n/ac/ax [wifi6] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot | 802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot |
| DLNA | Supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou | A-GPS, GeoTagging, GLONASS, BeiDou |
| NFC | Supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Galaxy S21 FE (SM-G9900 256GB) | Asus Zenfone 4 Selfie Pro (ZD552KL 64GB/3GB) | |
| Sensors | Accelerometer Ambient light sensor Barometer Compass Face unlock 2D Fingerprint sensor (under display) Gyroscope Hall effect Proximity sensor | Accelerometer Ambient light sensor Compass Fingerprint sensor Gyroscope Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Galaxy S21 FE (SM-G9900 256GB) | Asus Zenfone 4 Selfie Pro (ZD552KL 64GB/3GB) | |
| Battery type | LiPo: li-ion polymer (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 4500 mAh | 3000 mAh |
| Charger, watts | 25W Wired fast charging Reverse charging by cable USB Power Delivery 3.0 | 10W (5V/2A) Wired charging |
| Inductive / wireless charging | 15W Qi wireless charging 4.5W Reverse wireless charging | feature not registered |
| Talk time autonomy | feature not registered | 30 hours (1.3 days) |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Galaxy S21 FE (SM-G9900 256GB) | Asus Zenfone 4 Selfie Pro (ZD552KL 64GB/3GB) | |
| Call control | Voice dialing, Voice recorder, Voice commands | 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: Graphite, White, Lavender, Olive | • Colors: Rouge Red, Sunlight Gold, Deepsea Black • Metal body • ASUS ZenUI 4.0 • 2.5D screen glass • DTS sound enhancement • Hi-Res audio • 24-bit/192kHz audio • Slow motion 720p@120fps • Sony IMX362 sensor front camera • DuoPixel 24MP (2x12MP) front camera • Fast battery charging • VoLTE |
☢️ Radiation rate | ||
| Galaxy S21 FE (SM-G9900 256GB) | Asus Zenfone 4 Selfie Pro (ZD552KL 64GB/3GB) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | 0.674W/kg (head), 1.501W/kg (body) | feature not registered |