Phone Comparison - Samsung Galaxy Alpha (S801) vs Samsung Galaxy Note 4 Duos vs Samsung Galaxy A9

general General Info

Manufacturer Samsung Samsung Samsung
Announced August 2014 October 2014 Expected Announcement - November 2015
Status Available - September 2014 Available - October 2014 Rumored - December 2015
Colors Charcoal Black, Sleek Silver, Dazzling White, Frosted Gold, Scub Frosted white, Charcoal black, Bronze Gold, Blossom Pink Pearl White, Midnight Black, Champagne Gold
Form Factor Candybar Candybar Candybar
Dimension 132.4 x 65.5 x 6.7 mm
(5.21 x 2.58 x 0.26 in)
153.5 x 78.6 x 8.5 mm
(6.04 x 3.09 x 0.33 in)
-
Weight 115 g (4.06 oz) 175 g (6.17 oz) -
2G Network GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 - SIM 1
TD-SCDMA 1880 / 2010 - SIM 1
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (optional)
3G Network HSDPA HSDPA 850 / 900 / 1900 / 2100 - SIM 1 HSDPA 850 / 900 / 1900 / 2100
4G Network LTE LTE 1800 / 2100 / 2600 (Bands 1, 3, 7) - SIM 1 LTE
Messaging SMS, MMS, EMail, IM SMS, MMS, EMail, IM SMS, MMS, EMail, IM
Build Features - - Fingerprint sensor (PayPal certified)
- S Pen stylus
-

hardware Hardware and OS

OS Android OS, v4.4.4 (KitKat) Android OS, v4.4.4 (KitKat) Android OS, v5.1.1 (Lollipop), planned upgrade to v6.0 (Marshmallow)
Processor Quad-core 2.5 GHz Krait 400, Qualcomm MSM8974AC Snapdragon 801 Quad-core 2.7 GHz Krait 450, Qualcomm Snapdragon 805 Quad-core 1.8 GHz Cortex-A72 & quad-core 1.4 GHz Cortex-A53, Qualcomm MSM8976 Snapdragon 620
GPU Adreno 330 Adreno 420 Adreno 510
RAM 2 GB 3 GB 3 GB
Internal Memory 32 GB 16 GB 32 GB
External Memory No microSD, up to 128 GB microSD, up to 128 GB

display Display

Type Super AMOLED capacitive touchscreen Super AMOLED capacitive touchscreen Super AMOLED capacitive touchscreen
Colors 16M colors 16M colors 16M colors
Size 4.7 inches 5.7 inches 5.5 inches
Resolution 720 x 1280 pixels (312 ppi) 1440 x 2560 pixels (515 ppi) 1080 x 1920 pixels (401 ppi)
Screen-to-Body Ratio 70.43% 74.32% -
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio No No FM radio with RDS; recording
Games Yes + Downloadable Yes + Downloadable Yes + Downloadable
Loud Speaker yes yes yes

camera Camera

Rear Camera 12 MP, 4128 x 3096 pixels 16 MP, 5312 x 2988 pixels 16 MP, 5312 x 2988 pixels
Flash LED flash optical image stabil LED flash
Features Auto focus, Dual Camera, Geo-tagging, Touch Focus, Face And Smile Detection, Panorama, HDR Dual Shot, Simultaneous HD Video And Image Recording, Geo-tagging, Touch Focus, Face/smile Detection, Panorama, HDR Auto focus, Geo-tagging, Touch Focus, Face Detection, Panorama, HDR
Video 2160p@30fps, 1080p@60fps, 720p@120fps 2160p@30fps, 1080p@60fps, optical stabilization, dual-video rec. 1080p@30fps
Front Camera 2.1 MP [Similar] 3.7 MP, 1440p [Similar] 5 MP, 1080p [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSDPA, 42 Mbps, HSUPA; LTE-A, Cat6, 300 Mbps DL, 50 Mbps UL HSDPA, HSUPA, LTE HSPA 42.2/5.76 Mbps, LTE Cat6 300/50 Mbps
Bluetooth v4.0, A2DP, EDR, LE v4.1, A2DP, EDR, LE v4.2, A2DP, EDR, LE
Wi-Fi Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, Wi-Fi hotspot Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, Wi-Fi hotspot Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot
USB microUSB v2.0 microUSB v2.0 (MHL 3), USB Host, USB On-the-go microUSB v2.0
GPS Yes, with A-GPS, GLONASS, Beidou Yes, with A-GPS, GLONASS, Beidou Yes, with A-GPS, GLONASS/ Beidou (market dependant)
Browser HTML5 HTML5 HTML5

memory User Memory

Internal 32 GB, 2 GB RAM 16 GB, 3 GB RAM 32 GB, 3 GB RAM
Expandable Storage No microSD, up to 128 GB microSD, up to 128 GB
USB OTG - Supported -

Apps Sensors

Fingerprint fingerprint not supported fingerprint supported fingerprint supported
Proximity Sensor proximity sensor present proximity sensor present proximity sensor present
Accelerometer Sensor accelerometer sensor present accelerometer sensor present accelerometer sensor present
NFC NFC supported NFC supported NFC supported

battery Battery

Type Li-Ion Battery Li-Ion Battery Non-removable Li-Ion battery
Capacity 1860 mAh 3000 mAh 4000 mAh
Stand by - Up to 381 h (3G) -
Talk Time - - -