Asus Zenfone 8 (256GB/8GB) vs Samsung Galaxy J3 2018 (SM-J337U)
Side by side comparison between Asus Zenfone 8 vs Samsung Galaxy J3 (2018) phones, differences, pros, cons and full specifications. What's the better?
,
5.9"
AMOLED
AMOLED
1080x2400
64
MP
MP
12mp
8GB
RAM
RAM
Octa-core
4000
mAh
mAh
(Non removable)
vs
What's the better phone? Asus Zenfone 8 (256GB/8GB)
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!
31 Advantages 
3 Advantages | 15 Common items in both devices |
| 16 million |
| LED flash |
| Only digital zoom |
| PDAF: phase detection autofocus / Autofocus |
| Capacitive |
| Multitouch |
| Accelerometer |
| +8 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 8 (256GB/8GB) | Galaxy J3 2018 (SM-J337U) | |
| Model | Zenfone 8 (256GB/8GB) | Galaxy J3 2018 (SM-J337U) |
| Other model names | Asus Zenfone 8 (ZS590KS, ZS590KS-2A007EU) | Galaxy J3 (2018) Unlocked SM-J337UZKAXAA |
| Country or region available |  (Global, International) |  USA |
| Brand | Asus | Samsung |
| Release date | 5/13/2021, Announced: 5/12/2021 | 5/1/2018 |
| Depth | 8.9 millimeters (0.35 inches) | 9 millimeters (0.35 inches) |
| Size (width x height) | 68.5 x 148 millimeters (2.7 x 5.83 in) | 70.2 x 142.8 millimeters (2.76 x 5.62 in) |
| Weight | 169 grams (5.92 ounces) | 152 grams (5.32 ounces) |
| Build, materials | Aluminum frame, glass front/back | Plastic body, glass front |
| Protection against water and others | IP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant | Not supported |
📲 Display | ||
| Asus Zenfone 8 (256GB/8GB) | Galaxy J3 2018 (SM-J337U) | |
| Display type | Super AMOLED | TFT IPS LCD |
| Screen size | 5.9" inches | 5" inches |
| Screen-to-body ratio | ~82.9% (screen-to-body ratio) | ~68.8% (screen-to-body ratio) |
| Display resolution | 1080x2400 pixels (20:9) | 720x1280 pixels |
| Touchscreen | Capacitive Multitouch 10-points | Capacitive Multitouch |
| Pixel density (dot pitch) | 446 PPI | 294 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass Victus | Not supported |
| Refresh rate | 120Hz | feature not registered |
| Display features | 700nits[typ], 1100nits[peak] HDR10+ Always-On Display | feature not registered |
🤖 Operating System | ||
| Asus Zenfone 8 (256GB/8GB) | Galaxy J3 2018 (SM-J337U) | |
| System version | Android 11 | Android 8.0 Oreo |
| Firmware update | Android 13 | feature not registered |
| User Interface | ZenUI 8 / 9 / 10 | feature not registered |
⚙️ Processor | ||
| Asus Zenfone 8 (256GB/8GB) | Galaxy J3 2018 (SM-J337U) | |
| Chipset | 64bit: Qualcomm Snapdragon 888 (SM8350) (5nm) | 64bit: Samsung Exynos 7570 (14nm) |
| CPU | Octa-core, 3 processors: 1x 2.84GHz Kryo 680 (Single-core) 3x 2.42GHz Kryo 680 (Triple-core) 4x 1.8GHz Kryo 680 (Quad-core) | Quad-core, 1 processor: 4x 1.4GHz ARM Cortex-A53 (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 660 (840MHz) | ARM Mali-T720 MP1 (830MHz) |
| Performance (benchmark) | AnTuTu: 676001 (v8), 799738 (v9) Geekbench: 3604 (v5.1) GFXBench: 61fps (ES 3.1 onscreen) | feature not registered |
💽 Memory and storage | ||
| Asus Zenfone 8 (256GB/8GB) | Galaxy J3 2018 (SM-J337U) | |
| RAM memory | 8GB LPDDR5 | 2GB LPDDR3 |
| Internal storage | 256GB (228GB available) UFS 3.1 | 16GB (9GB available) eMMC 5.0 |
| External storage | Not supported | Until 512GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Asus Zenfone 8 (256GB/8GB) | Galaxy J3 2018 (SM-J337U) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card | Not supported |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 1 slot (Single-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 | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 800/850/900/1700/1900/2100 | UMTS 850/900/1700/1900/2100 |
| Primary 4G network | LTE Cat20 VoLTE America version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 30, 66, 71) TD-LTE (34, 38, 39, 40, 41, 42) Global version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28) TD-LTE (34, 38, 39, 40, 41, 42) | LTE Cat4 (Bands 2, 3, 4, 5, 7, 12, 14) |
| Primary 5G network | America version: SA/NSA (1, 2, 3, 5, 7, 8, 12, 20, 25, 38, 40, 66, 71, 77, 78) Global version: SA/NSA (1, 2, 3, 5, 7, 8, 12, 20, 28, 38, 77, 78) | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE |
| Secondary 2G network | GSM 850/900/1800/1900 | Not supported |
| Secondary 3G network | UMTS 800/850/900/1700/1900/2100 | Not supported |
| Secondary 4G network | LTE Cat20 VoLTE America version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 30, 66, 71) TD-LTE (34, 38, 39, 40, 41, 42) Global version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28) TD-LTE (34, 38, 39, 40, 41, 42) | Not supported |
| Secondary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A | Not supported |
📷 Camera | ||
| Asus Zenfone 8 (256GB/8GB) | Galaxy J3 2018 (SM-J337U) | |
| Back camera (main camera) | (dual camera) 64 megapixels 12MP ultrawide f/2.2112°14mm1/2.55"1.4µmPDAF | 8 megapixels |
| Main camera resolution | 10120x6328 pixels | 3264x2448 pixels |
| Video recording (primary) | 8K UHD (7680x4320) 24 fps | Full HD (1920x1080) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/1.8 (aperture) | f/1.9 (aperture) |
| Focal length | 26mm lens | feature not registered |
| Sensor size | 1/1.73" inches | feature not registered |
| Pixel size | 0.8µm pixel | feature not registered |
| 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 | Supported | Not supported |
| HDR | HDR photo/video on both cameras | HDR photo only main camera |
| Camera extras | 4K@120fps 1080p@240fps 720p@480fps | feature not registered |
📸 Front camera | ||
| Asus Zenfone 8 (256GB/8GB) | Galaxy J3 2018 (SM-J337U) | |
| Front camera (secondary) | 12 megapixels | 5 megapixels |
| Front camera resolution | 4000x3000 pixels | 2560x1920 pixels |
| Video recording (secondary) | 4K UHD (3840x2160) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.5 (aperture) | f/2.2 (aperture) |
| Focal length | 28mm lens | feature not registered |
| Sensor size | 1/2.93" inches | feature not registered |
| Pixel size | 1.22µm pixel | feature not registered |
🔉 Sound and multimedia | ||
| Asus Zenfone 8 (256GB/8GB) | Galaxy J3 2018 (SM-J337U) | |
| Loudspeaker | Stereo sound 32-bit/384kHz | Supported |
| Active noise cancellation | 2 microphones or more | Not supported |
| Radio | FM | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD, MKV | MP4, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Asus Zenfone 8 (256GB/8GB) | Galaxy J3 2018 (SM-J337U) | |
| USB | USB 2.0 Type-C, USB OTG On-The-Go | MicroUSB 2.0 |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | USB Type-C (reversible) | Not supported |
| Bluetooth | 5.2 + A2DP/LE | 4.2 + A2DP |
| WiFi | 802.11 a/b/g/n/ac/ax [wifi6E/6] (2.4GHz, 5GHz, 6GHz) + MIMO WiFi Direct, hotspot | 802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot |
| DLNA | Not supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS, NavIC | A-GPS, GeoTagging, GLONASS |
| NFC | Supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Asus Zenfone 8 (256GB/8GB) | Galaxy J3 2018 (SM-J337U) | |
| Sensors | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (under display) Gyroscope Hall effect Proximity sensor | Accelerometer Compass Gyroscope Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Asus Zenfone 8 (256GB/8GB) | Galaxy J3 2018 (SM-J337U) | |
| Battery type | LiPo: li-ion polymer (Non removable) | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 4000 mAh | 2600 mAh |
| Charger, watts | 30W Wired fast charging 5W Reverse charging by cable Quick Charge 4 USB Power Delivery 3.0 | Wired charging |
| Inductive / wireless charging | Not supported | feature not registered |
| Talk time autonomy | feature not registered | feature not registered |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Asus Zenfone 8 (256GB/8GB) | Galaxy J3 2018 (SM-J337U) | |
| 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: Obsidian Black, Horizon Silver | • Colors: Black |
☢️ Radiation rate | ||
| Asus Zenfone 8 (256GB/8GB) | Galaxy J3 2018 (SM-J337U) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | 1.2W/kg (head), 1.58W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |