Samsung Galaxy A9 2018 (SM-A920F/DS 128GB/6GB) vs Samsung Galaxy Watch (42mm SM-R815U)
Side by side comparison between Samsung Galaxy A9 (2018) vs Samsung Galaxy Watch devices, differences, pros, cons and full specifications. What's the better?
,
6.3"
AMOLED
AMOLED
1080x2220
24
MP
MP
24mp
6GB
RAM
RAM
Octa-core
3800
mAh
mAh
(Non removable)
vs
1.2"
AMOLED
AMOLED
360x360
N/A
1.5GB
RAM
RAM
Dual-core
270
mAh
mAh
(Non removable)
What's the better device? Samsung Galaxy A9 2018 (SM-A920F/DS 128GB/6GB)
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!
26 Advantages 
8 Advantages | 12 Common items in both devices |
| Super AMOLED |
| 16 million |
| 4G LTE-A / 4G LTE |
| Capacitive |
| Multitouch |
| Accelerometer |
| Ambient light sensor |
| +5 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 A9 2018 (SM-A920F/DS 128GB/6GB) | Galaxy Watch (42mm SM-R815U) | |
| Model | Galaxy A9 2018 (SM-A920F/DS 128GB/6GB) | Galaxy Watch (42mm SM-R815U) |
| Other model names | Galaxy A9 SM-A920F/Dual-Sim (6GB RAM), SM-A920FZBJZTO | Galaxy Watch 42mm (4G LTE) SM-R815UZDAXAR, Samsung Galileo |
| Country or region available |     (Europe), Brazil, India, Malaysia |  USA |
| Brand | Samsung | Samsung |
| Release date | 10/11/2018 | 8/1/2018 |
| Depth | 7.8 millimeters (0.31 inches) | 12.7 millimeters (0.5 inches) |
| Size (width x height) | 77 x 162.5 millimeters (3.03 x 6.4 in) | 41.9 x 45.7 millimeters (1.65 x 1.8 in) |
| Weight | 183 grams (6.41 ounces) | 49 grams (1.72 ounces) |
| Build, materials | Aluminum body, glass front | Stainless steel body, glass front |
| Protection against water and others | Not supported | 5 ATM: 50 meters waterproof. MIL-STD-810G military certified: salt, dust, humidity, rain, vibration, solar radiation, transport and thermal shock resistant. |
📲 Display | ||
| Galaxy A9 2018 (SM-A920F/DS 128GB/6GB) | Galaxy Watch (42mm SM-R815U) | |
| Display type | Super AMOLED | Super AMOLED |
| Screen size | 6.3" inches | 1.2" inches |
| Screen-to-body ratio | ~80.5% (screen-to-body ratio) | ~24.3% (screen-to-body ratio) |
| Display resolution | 1080x2220 pixels (18.5:9) | 360x360 pixels (1:1) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 392 PPI | 424 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 5 | Gorilla Glass DX+ |
| Refresh rate | 60Hz | feature not registered |
| Display features | Not supported | Not supported |
🤖 Operating System | ||
| Galaxy A9 2018 (SM-A920F/DS 128GB/6GB) | Galaxy Watch (42mm SM-R815U) | |
| System version | Android 8.0 Oreo | Tizen 4.0 |
| Firmware update | Android 9.0 Pie | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Galaxy A9 2018 (SM-A920F/DS 128GB/6GB) | Galaxy Watch (42mm SM-R815U) | |
| Chipset | 64bit: Qualcomm Snapdragon 660 SDM660 (14nm) | 64bit: Samsung Exynos 9 Dual 9110 (10nm) |
| CPU | Octa-core, 2 processors: 4x 2.2GHz Kryo 260 Gold (Quad-core) 4x 1.8GHz Kryo 260 Silver (Quad-core) | Dual-core, 1 processor: 2x 1.15GHz ARM Cortex-A53 (Dual-core) |
| GPU graphical controller | Qualcomm Adreno 512 650Mhz | ARM Mali-T720 MP1 |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Galaxy A9 2018 (SM-A920F/DS 128GB/6GB) | Galaxy Watch (42mm SM-R815U) | |
| RAM memory | 6GB LPDDR4X | 1.5GB LPDDR3 |
| Internal storage | 128GB (110GB available) eMMC 5.1 | 4GB (1.5GB available) eMMC |
| External storage | Until 1TB microSD, microSDXC (dedicated slot) | Not supported |
📶 Mobile networks | ||
| Galaxy A9 2018 (SM-A920F/DS 128GB/6GB) | Galaxy Watch (42mm SM-R815U) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (dedicated slot) | Not supported |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 1 slot (Single-SIM) e-SIM (Eletronic) |
| Maximum Download / Upload | 450/50 Mbps | 10 Mbps |
| Network technology | 2G, 3G, 4G | 3G, 4G |
| 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 850/900/1900/2100 | UMTS 850/1700/1900 |
| Primary 4G network | LTE Cat9 (1, 3, 5, 7, 8, 20) TD-LTE (38, 40) | LTE (Bands 2,4,5,12,13,25,26,66) |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A | UMTS, HSDPA, HSUPA, HSPA+, LTE |
| 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 | ||
| Galaxy A9 2018 (SM-A920F/DS 128GB/6GB) | Galaxy Watch (42mm SM-R815U) | |
| Back camera (main camera) | (quad camera) 24 megapixels 10MP telephoto f/2.452mm1/3.9"1.0µmAF2x-optical-zoom 8MP ultrawide f/2.412mm1/4.0"1.12µm 5MP depth f/2.2 | Not supported |
| Main camera resolution | 5656x4240 pixels | Not supported |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | Not supported |
| Flash | LED flash | Not supported |
| Focal aperture | f/1.7 (aperture) | feature not registered |
| Focal length | 27mm lens | feature not registered |
| Sensor size | 1/2.8" inches | feature not registered |
| Pixel size | 0.9µm pixel | feature not registered |
| Autofocus | PDAF: phase detection autofocus | Not supported |
| Touch focus | Supported | Not supported |
| Image stabilization | EIS: Digital stabilization | Not supported |
| Zoom | Digital and optical zoom | Not supported |
| Face/smile detection | Face detection, Smile detection | Not supported |
| BSI sensor | Not supported | Not supported |
| HDR | HDR photo on both cameras | Not supported |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Galaxy A9 2018 (SM-A920F/DS 128GB/6GB) | Galaxy Watch (42mm SM-R815U) | |
| Front camera (secondary) | 24 megapixels | Not supported |
| Front camera resolution | 5656x4240 pixels | Not supported |
| Video recording (secondary) | Full HD (1920x1080) | Not supported |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.0 (aperture) | feature not registered |
| Focal length | 27mm lens | feature not registered |
| Sensor size | 1/2.8" inches | feature not registered |
| Pixel size | 0.9µm pixel | feature not registered |
🔉 Sound and multimedia | ||
| Galaxy A9 2018 (SM-A920F/DS 128GB/6GB) | Galaxy Watch (42mm SM-R815U) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | 2 microphones or more | Not supported |
| Radio | FM | Not supported |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD, MKV | MP4 |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, OGG, eAAC+ |
🔌 Connectivity | ||
| Galaxy A9 2018 (SM-A920F/DS 128GB/6GB) | Galaxy Watch (42mm SM-R815U) | |
| USB | USB 2.0 Type-C, USB OTG On-The-Go | Not supported |
| Audio output | 3.5mm jack | Not supported |
| TV output | Not supported | Not supported |
| Bluetooth | 5.0 + A2DP/LE | 4.2 + A2DP |
| WiFi | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot | 802.11 b/g/n [wifi4] (2.4GHz) |
| DLNA | Not supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou | A-GPS, GeoTagging, GLONASS |
| NFC | Supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Galaxy A9 2018 (SM-A920F/DS 128GB/6GB) | Galaxy Watch (42mm SM-R815U) | |
| Sensors | Accelerometer Ambient light sensor ANT+ Compass Fingerprint sensor (rear-mounted) Gyroscope Hall effect Proximity sensor | Accelerometer Ambient light sensor Barometer Gyroscope Heart rate Pedometer |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Galaxy A9 2018 (SM-A920F/DS 128GB/6GB) | Galaxy Watch (42mm SM-R815U) | |
| Battery type | Li-Ion: lithium-ion (Non removable) | Li-Ion: lithium-ion (Non removable) |
| Battery capacity | 3800 mAh | 270 mAh |
| Charger, watts | 18W Wired fast charging | 3.5W (5V/0.7A) Wired charging |
| Inductive / wireless charging | Not supported | Qi wireless charging |
| Talk time autonomy | feature not registered | feature not registered |
| Standby | feature not registered | 72 hours (3 days) |
➕ Other features | ||
| Galaxy A9 2018 (SM-A920F/DS 128GB/6GB) | Galaxy Watch (42mm SM-R815U) | |
| 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 | Not supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | HTML, XHTML, HTML5 | Not supported |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Caviar Black, Lemonade Blue, Bubblegum Pink • Samsung Pay • Dolby Atmos | • Colors: Midnight Black, Rose Gold • Straps: Black, Grey, Red, Yellow, Purple, Pink, Brown • Compatible with standard 20mm straps • Always-on display • Rotating bezel • Samsung Pay • Compatible with Sprint, T-Mobile and Verizon carriers |
☢️ Radiation rate | ||
| Galaxy A9 2018 (SM-A920F/DS 128GB/6GB) | Galaxy Watch (42mm SM-R815U) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | 0.27W/kg (head), 0.84W/kg (body) | 0.961W/kg (head), 1.786W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |