Xiaomi Redmi 2A vs Samsung Star Duos (GT-B7722)
Side by side comparison between Xiaomi Redmi 2A vs Samsung Star Duos phones, differences, pros, cons and full specifications. What's the better?
,
4.7"
IPS
IPS
720x1280
8
MP
MP
2mp
1GB
RAM
RAM
Quad-core
2200
mAh
mAh
(Removable)
vs
What's the better phone? Xiaomi Redmi 2A
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!
28 Advantages 
1 Advantage | 10 Common items in both devices |
| LED flash |
| Only digital zoom |
| Autofocus |
| Accelerometer |
| LiPo: li-ion polymer (Removable) / Li-Ion: lithium-ion (Removable) |
| Hands-free calling |
| Vibrating alert |
| +3 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 | ||
| Redmi 2A | Samsung Star Duos (GT-B7722) | |
| Change model | ||
| Model | Redmi 2A | Star Duos (GT-B7722) |
| Other model names | Xiaomi Hongmi 2A, Xiaomi Redmi 2A Dual-Sim | Samsung GT-B7722/H, Samsung B7722i Duos |
| Country or region available |   China, Hong Kong | feature not registered |
| Brand | Xiaomi | Samsung |
| Release date | 3/1/2015 | 6/1/2010 |
| Depth | 9.4 millimeters (0.37 inches) | 14.3 millimeters (0.56 inches) |
| Size (width x height) | 67.2 x 134 millimeters (2.65 x 5.28 in) | 55.5 x 113.5 millimeters (2.19 x 4.47 in) |
| Weight | 134 grams (4.69 ounces) | 112 grams (3.92 ounces) |
| Build, materials | Plastic body, glass front | feature not registered |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Redmi 2A | Samsung Star Duos (GT-B7722) | |
| Display type | TFT IPS LCD | TFT LCD |
| Screen size | 4.7" inches | 3.2" inches |
| Screen-to-body ratio | ~67.6% (screen-to-body ratio) | ~46.3% (screen-to-body ratio) |
| Display resolution | 720x1280 pixels | 240x400 pixels |
| Touchscreen | Capacitive Multitouch | Resistive Single touch 1-point |
| Pixel density (dot pitch) | 312 PPI | 146 PPI |
| Colors | 16 million | 260 thousand |
| Scratch-resistant glass | Dragontrail Glass | Not supported |
| Refresh rate | feature not registered | feature not registered |
| Display features | feature not registered | feature not registered |
🤖 Operating System | ||
| Redmi 2A | Samsung Star Duos (GT-B7722) | |
| System version | Android 4.4.4 KitKat | Proprietary OS |
| Firmware update | feature not registered | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Redmi 2A | Samsung Star Duos (GT-B7722) | |
| Chipset | 32bit: Leadcore InnoPower LC1860C | 32bit |
| CPU | Quad-core, 1 processor: 4x 1.5GHz ARM Cortex-A7 (Quad-core) | Single-core, 1 processor: Single-core |
| GPU graphical controller | ARM Mali-T628 MP2 | feature not registered |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Redmi 2A | Samsung Star Duos (GT-B7722) | |
| RAM memory | 1GB LPDDR3 | feature not registered |
| Internal storage | 8GB (4GB available) | 270MB |
| External storage | Until 32GB microSD, microSDHC (dedicated slot) | Until 16GB microSD, microSDHC (dedicated slot) |
📶 Mobile networks | ||
| Redmi 2A | Samsung Star Duos (GT-B7722) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (dedicated slot) | Dual-SIM Standby - Call active on one sim card (dedicated slot) |
| SIM card | 2 slots (Dual-SIM) micro-SIM (3FF) | 2 slots (Dual-SIM) Standard mini-SIM (2FF) |
| Maximum Download / Upload | 150/50 Mbps | 3.6 Mbps |
| Network technology | 2G, 3G, 4G | 2G, 3G |
| Frequency, bands | Expand band details Collapse details | |
| GSM MHz band | Tri-Band 900/1800/1900 | Quad-Band 850/900/1800/1900 |
| Primary 2G network | GSM 900/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | TD-SCDMA 1900/2000 UMTS 850/1900/2100 | UMTS 2100 |
| Primary 4G network | LTE Cat4 (Bands 3, 7) TD-LTE (Bands 38, 39, 40, 41) | Not supported |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE | GPRS, EDGE, UMTS, HSDPA |
| Secondary 2G network | GSM 900/1800/1900 | GSM 900/1800 |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | GPRS, EDGE | GPRS, EDGE |
📷 Camera | ||
| Redmi 2A | Samsung Star Duos (GT-B7722) | |
| Back camera (main camera) | 8 megapixels | 5 megapixels |
| Main camera resolution | 3264x2448 pixels | 2560x1920 pixels |
| Video recording (primary) | Full HD (1920x1080) 30 fps | QVGA (320x240) 30 fps |
| Flash | LED flash | LED flash |
| 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 | Autofocus |
| Touch focus | Supported | feature not registered |
| Image stabilization | feature not registered | feature not registered |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | feature not registered |
| BSI sensor | Supported | feature not registered |
| HDR | HDR photo only main camera | feature not registered |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Redmi 2A | Samsung Star Duos (GT-B7722) | |
| Front camera (secondary) | 2 megapixels | Not supported |
| Front camera resolution | 1600x1200 pixels | Not supported |
| Video recording (secondary) | HD (1280x720) | 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 | ||
| Redmi 2A | Samsung Star Duos (GT-B7722) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | 2 microphones or more | feature not registered |
| Radio | FM | FM (RDS) |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263 | MP4, H.264, H.263 |
| Audio formats | MP3, WAV, eAAC+, FLAC | MP3, WAV, WMA, eAAC+ |
🔌 Connectivity | ||
| Redmi 2A | Samsung Star Duos (GT-B7722) | |
| USB | MicroUSB 2.0, USB OTG On-The-Go | MicroUSB 2.0 |
| Audio output | 3.5mm jack | via Micro-USB |
| TV output | Not supported | Not supported |
| Bluetooth | 4.0 + A2DP | 2.1 + A2DP |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot | 802.11 b/g [wifi3] (2.4GHz) |
| DLNA | Supported | feature not registered |
| GPS | A-GPS, GeoTagging, GLONASS | Not supported |
| NFC | Not supported | Not supported |
| Infrared port | Not supported | feature not registered |
🧭 Sensors | ||
| Redmi 2A | Samsung Star Duos (GT-B7722) | |
| Sensors | Accelerometer Ambient light sensor Compass Gyroscope Proximity sensor | Accelerometer |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Redmi 2A | Samsung Star Duos (GT-B7722) | |
| Battery type | LiPo: li-ion polymer (Removable) | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 2200 mAh | 1200 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | feature not registered | feature not registered |
| Talk time autonomy | feature not registered | 5.6 hours |
| Standby | feature not registered | 330 hours (13.8 days) |
➕ Other features | ||
| Redmi 2A | Samsung Star Duos (GT-B7722) | |
| Call control | Voice dialing, Voice recorder | Voice recorder |
| Messaging | SMS (T9), MMS, E-mail, Push mail | SMS, 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 | HTML, XHTML |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Black, White, Yellow, Pink, Green • MIUI 6.0 | • Colors: Black • SHP OS • Dolphin 1.0 browser • 3D Sound Technology Java framework |
☢️ Radiation rate | ||
| Redmi 2A | Samsung Star Duos (GT-B7722) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |