Samsung Galaxy Alpha (SM-G850A) vs Samsung SGH-D820
Side by side comparison between Samsung Galaxy Alpha vs Samsung SGH-D820 phones, differences, pros, cons and full specifications. What's the better?
,
4.7"
AMOLED
AMOLED
720x1280
12
MP
MP
2.1mp
2GB
RAM
RAM
Quad-core
1860
mAh
mAh
(Removable)
vs
What's the better phone? Samsung Galaxy Alpha (SM-G850A)
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 | 4 Common items in both devices |
| Only digital zoom |
| Li-Ion: lithium-ion (Removable) |
| Hands-free calling |
| Vibrating alert |
| + 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 Alpha (SM-G850A) | Samsung SGH-D820 | |
| Model | Galaxy Alpha (SM-G850A) | Samsung SGH-D820 |
| Other model names | AT&T Samsung Galaxy Alpha S801 SM-G850A for USA | Samsung D820, Samsung SGH-D820 |
| Country or region available |  USA |  (Global, International) |
| Brand | Samsung | Samsung |
| Release date | 9/1/2014 | 10/1/2005 |
| Depth | 6.7 millimeters (0.26 inches) | 15.2 millimeters (0.6 inches) |
| Size (width x height) | 65.5 x 132.4 millimeters (2.58 x 5.21 in) | 51 x 95 millimeters (2.01 x 3.74 in) |
| Weight | 115 grams (4.03 ounces) | 99 grams (3.47 ounces) |
| Build, materials | feature not registered | feature not registered |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Galaxy Alpha (SM-G850A) | Samsung SGH-D820 | |
| Display type | Super AMOLED | TFT LCD |
| Screen size | 4.7" inches | 2.1" inches |
| Screen-to-body ratio | ~70.2% (screen-to-body ratio) | ~28.2% (screen-to-body ratio) |
| Display resolution | 720x1280 pixels | 240x320 pixels |
| Touchscreen | Capacitive Multitouch 10-points | Not supported |
| Pixel density (dot pitch) | 312 PPI | 190 PPI |
| Colors | 16 million | 260 thousand |
| Scratch-resistant glass | Gorilla Glass 4 | Not supported |
| Refresh rate | feature not registered | feature not registered |
| Display features | feature not registered | feature not registered |
🤖 Operating System | ||
| Galaxy Alpha (SM-G850A) | Samsung SGH-D820 | |
| System version | Android 4.4.4 KitKat | Proprietary OS |
| Firmware update | Android 5.0.2 Lollipop | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Galaxy Alpha (SM-G850A) | Samsung SGH-D820 | |
| Chipset | 32bit: Qualcomm Snapdragon 801 MSM8974-AC (28nm) | 16bit |
| CPU | Quad-core, 1 processor: 4x 2.5GHz Krait 400 (Quad-core) | Single-core, 1 processor: Single-core |
| GPU graphical controller | Qualcomm Adreno 330 578Mhz | feature not registered |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Galaxy Alpha (SM-G850A) | Samsung SGH-D820 | |
| RAM memory | 2GB LPDDR3 | SDRAM |
| Internal storage | 32GB (25GB available) | 128MB (73MB available) |
| External storage | Not supported | Until 2GB microSD (dedicated slot) |
📶 Mobile networks | ||
| Galaxy Alpha (SM-G850A) | Samsung SGH-D820 | |
| Dual-SIM | Not supported | Not supported |
| SIM card | 1 slot (Single-SIM) nano-SIM (4FF) | 1 slot (Single-SIM) Standard mini-SIM (2FF) |
| Maximum Download / Upload | 150/50 Mbps | 0.384 Mbps |
| Network technology | 2G, 3G, 4G | 2G |
| 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 850/900/1900/2100 | Not supported |
| Primary 4G network | LTE 700/850/1700/1800/1900/2100/2600 (Bands 1,2,3,4,5,7,17) | Not supported |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE, LTE-A | GPRS, EDGE |
| Secondary 2G network | Not supported | Not supported |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | Not supported | Not supported |
📷 Camera | ||
| Galaxy Alpha (SM-G850A) | Samsung SGH-D820 | |
| Back camera (main camera) | 12 megapixels | 1.3 megapixels |
| Main camera resolution | 4608x2592 pixels | 1280x1024 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | CIF (352x288) 13 fps |
| Flash | LED flash | Not supported |
| Focal aperture | f/2.2 (aperture) | feature not registered |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | feature not registered | feature not registered |
| Autofocus | Autofocus | Not supported |
| Touch focus | Supported | Not supported |
| Image stabilization | EIS: Digital stabilization | Not supported |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Not supported |
| BSI sensor | Not supported | Not supported |
| HDR | HDR photo/video only main camera | Not supported |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Galaxy Alpha (SM-G850A) | Samsung SGH-D820 | |
| Front camera (secondary) | 2.1 megapixels | Not supported |
| Front camera resolution | 1920x1080 pixels | Not supported |
| Video recording (secondary) | Full HD (1920x1080) | Not supported |
| Front flash | Not supported | Not supported |
| Focal aperture | feature not registered | feature not registered |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | feature not registered | feature not registered |
🔉 Sound and multimedia | ||
| Galaxy Alpha (SM-G850A) | Samsung SGH-D820 | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | 2 microphones or more | Not supported |
| Radio | Not supported | Not supported |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263, WMV | 3GPP |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, AAC+ |
🔌 Connectivity | ||
| Galaxy Alpha (SM-G850A) | Samsung SGH-D820 | |
| USB | MicroUSB 2.0 | USB 1.1 proprietary connector |
| Audio output | 3.5mm jack | 2.5mm jack |
| TV output | Not supported | Proprietary TV-out |
| Bluetooth | 4.0 + A2DP | 1.2 |
| WiFi | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) WiFi Direct, hotspot | Not supported |
| DLNA | Supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS | Not supported |
| NFC | Supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Galaxy Alpha (SM-G850A) | Samsung SGH-D820 | |
| Sensors | Accelerometer Ambient light sensor Compass Fingerprint sensor Gyroscope Proximity sensor | Not supported |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Galaxy Alpha (SM-G850A) | Samsung SGH-D820 | |
| Battery type | Li-Ion: lithium-ion (Removable) | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 1860 mAh | 800 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | feature not registered | feature not registered |
| Talk time autonomy | 11 hours | 3 hours |
| Standby | feature not registered | 180 hours (7.5 days) |
➕ Other features | ||
| Galaxy Alpha (SM-G850A) | Samsung SGH-D820 | |
| Call control | Voice dialing, Voice recorder, Voice commands | Voice recorder |
| Messaging | SMS (Swype), MMS, E-mail, Push mail | SMS (T9), MMS, E-mail |
| Hands-free calling | Supported | Supported |
| Video calling | Supported | Not supported |
| Ringtones | Polyphonic and customized | Polyphonic |
| Web browser | HTML, XHTML, HTML5 | WAP, HTML |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Black, Silver, White, Gold, Blue • USB OTG On-The-Go • Dual Shot camera (video + photo) • Fingerprint sensor (PayPal certified) • Dropbox 50GB • ANT+ support | • Colors: Noir Black, Blue Black, Charcoal Gray • Picsel viewer • SyncML • Java framework |
☢️ Radiation rate | ||
| Galaxy Alpha (SM-G850A) | Samsung SGH-D820 | |
| SAR 1.6W/kg (USA, Mexico, etc.) | 1.25W/kg (head), 1.05W/kg (body) | 0.36W/kg (head), 0.41W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | 0.4W/kg (head), 0.265W/kg (body) | 0.7W/kg (head) |