Physical features | Xiaomi Redmi 9A (64GB) | Samsung Galaxy S2 Plus (GT-i9105) |
Model | Redmi 9A (64GB) | Galaxy S2 Plus (GT-i9105) |
Other model names | Xiaomi Redmi 9A M2006C3LG, M2006C3LI | Samsung Galaxy S ii Plus i9105, Samsung GT-i9105 |
Country or region available |  China | feature not registered |
Brand | Xiaomi | Samsung |
Release date | June, 2020 | February, 2013 |
Depth | 9 millimeters (0.35 inches) | 8.5 millimeters (0.33 inches) |
Size (width x height) | 77.07 x 164.9 millimeters (3.03 x 6.49 in) | 66.1 x 125.3 millimeters (2.6 x 4.93 in) |
Weight | 194 grams (6.79 ounces) | 121 grams (4.24 ounces) |
Qwerty physical keyboard | Not supported | Not supported |
Antenna | Internal antenna | Internal antenna |
Build, materials | Plastic body, glass front | feature not registered |
Protection against water and others | Not supported | Not supported |
System (OS) | Xiaomi Redmi 9A (64GB) | Samsung Galaxy S2 Plus (GT-i9105) |
Operating system | Android 10 | Android 4.1.2 Jelly Bean |
Firmware update | feature not registered | Android 4.2.2 Jelly Bean |
Hardware | Xiaomi Redmi 9A (64GB) | Samsung Galaxy S2 Plus (GT-i9105) |
Chipset | 64bit - MediaTek Helio G25 (12nm) | 32bit - Broadcom BCM28155 (40nm) |
CPU processor | Octa-Core, 2 processors: 2Ghz Quad-Core ARM Cortex-A53 1.5Ghz Quad-Core ARM Cortex-A53 | 1.2Ghz Dual-Core ARM Cortex-A9 |
GPU graphical controller | PowerVR GE8320 650Mhz | Broadcom VideoCore IV |
RAM memory | 4GB LPDDR4X | 1GB LPDDR2 |
Internal storage | 64GB (49GB available) eMMC 5.1 | 8GB (5GB available) |
External storage | Until 512GB microSD, microSDXC (dedicated slot) | Until 64GB microSD, microSDXC (dedicated slot) |
Display | Xiaomi Redmi 9A (64GB) | Samsung Galaxy S2 Plus (GT-i9105) |
Display type | TFT IPS LCD | Super AMOLED Plus |
Screen size | 6.53" inches | 4.3" inches |
Screen-to-body ratio | ~81% (screen-to-body ratio) | ~63.5% (screen-to-body ratio) |
Display resolution | 720x1600 pixels (20:9) | 480x800 pixels |
Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
Pixel density (dot pitch) | 269 PPI | 217 PPI |
Colors | 16 million | 16 million |
Scratch-resistant glass | Not supported | Not supported |
Display features | 60Hz, 400 nits | feature not registered |
Mobile networks | Xiaomi Redmi 9A (64GB) | Samsung Galaxy S2 Plus (GT-i9105) |
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) Standard mini-SIM (2FF) |
Maximum download/upload | 300/50 Mbps | 21/5.76 Mbps |
Network technology | 2G, 3G, 4G | 2G, 3G |
Frequency, bands | Expand band detailsCollapse 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 850/900/1700/1900/2100 | UMTS 850/900/1900/2100 |
Primary 4G network | LTE Cat6 (1, 2 ,3, 4, 5, 7, 8, 20, 28) TD-LTE (38, 40, 41) VoLTE | Not supported |
Primary 5G network | Not supported | Not supported |
Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+ |
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 |
Calling | Xiaomi Redmi 9A (64GB) | Samsung Galaxy S2 Plus (GT-i9105) |
Messaging | SMS (T9), MMS, E-mail, Push mail | SMS (Swype), MMS, E-mail, Push mail |
Speakerphone | Supported | Supported |
Video calling | Supported | Supported |
Call control | Voice dialing, Voice recorder, Voice commands | Voice dialing, Voice recorder, Voice commands |
Camera | Xiaomi Redmi 9A (64GB) | Samsung Galaxy S2 Plus (GT-i9105) |
Back camera (main camera) | 13 megapixels | 8 megapixels |
Main camera resolution | 4128x3096 pixels | 3264x2448 pixels |
Video recording (primary) | Full HD (1920x1080) 30 fps | Full HD (1920x1080) 30 fps |
Flash | LED flash | LED flash |
Focal aperture | f/2.2 (aperture) | f/2.6 (aperture) |
Focal length | 28mm lens | feature not registered |
Sensor size | feature not registered | 1/3.2" inches |
Pixel size | 1µm pixel | feature not registered |
Autofocus | PDAF: phase detection autofocus | Autofocus |
Touch focus | Supported | Supported |
Image stabilization | EIS: Digital stabilization | EIS: Digital stabilization |
Zoom | Only digital zoom | Only digital zoom |
Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
BSI sensor | Not supported | Not supported |
HDR | HDR photo on both cameras | Not supported |
2ª camera | Xiaomi Redmi 9A (64GB) | Samsung Galaxy S2 Plus (GT-i9105) |
Front camera (secondary) | 5 megapixels | 2 megapixels |
Front camera resolution | 2560x1920 pixels | 1600x1200 pixels |
Video recording (secondary) | Full HD (1920x1080) | Not supported |
Front flash | Not supported | 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 | 1.12µm pixel | feature not registered |
Multimedia | Xiaomi Redmi 9A (64GB) | Samsung Galaxy S2 Plus (GT-i9105) |
Radio | FM | FM (RDS) |
TV | Not supported | Not supported |
Video formats | MP4, H.265, H.264, H.263, XviD, MKV | MP4, H.264, H.263, DivX, XviD, WMV |
Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, eAAC+, AC3, FLAC |
Connectivity | Xiaomi Redmi 9A (64GB) | Samsung Galaxy S2 Plus (GT-i9105) |
USB | MicroUSB 2.0, USB OTG On-The-Go | MicroUSB 2.0 |
TV output | Micro-B USB SlimPort | Micro-B USB MHL |
Audio output | 3.5mm jack | 3.5mm jack |
Bluetooth | 5.0 + A2DP/LE | 3.0 + A2DP |
WiFi | 802.11 b/g/n (2.4Ghz) | 802.11 a/b/g/n (2.4Ghz, 5Ghz) + MIMO |
DLNA | Not supported | Supported |
NFC | Not supported | Not supported |
GPS | A-GPS, GeoTagging, GLONASS, BeiDou | A-GPS, GeoTagging, GLONASS |
Infrared port | Not supported | Not supported |
Other functions | Xiaomi Redmi 9A (64GB) | Samsung Galaxy S2 Plus (GT-i9105) |
Active noise cancellation | Supported | Supported |
Vibrating alert | Supported | Supported |
Ringtones | Polyphonic and customized | Polyphonic and customized |
Web browser | HTML, XHTML, HTML5 | HTML, XHTML, HTML5 |
Sensors | Accelerometer Proximity sensor Ambient Light sensor Face unlock
| Accelerometer Proximity sensor Compass Ambient Light sensor Gyroscope
|
Other features | - Colors: Carbon Gray, Sky Blue, Ocean Green - MIUI 12 - WiFi direct, hotspot | - Colors: Chic White, Dark Blue - Samsung TouchWiz UI 5.0 - WiFi direct, hotspot |
Power supply | Xiaomi Redmi 9A (64GB) | Samsung Galaxy S2 Plus (GT-i9105) |
Battery | LiPo: Li-Ion polymer (Non removable) | Li-Ion: Lithium-Ion (Removable) |
Battery capacity | 5000 mAh | 1650 mAh |
Charger, watts | 10W (5V/2A) Standard charging | Standard charging |
Talk time autonomy | feature not registered | feature not registered |
Standby | feature not registered | feature not registered |
Radiation rate | Xiaomi Redmi 9A (64GB) | Samsung Galaxy S2 Plus (GT-i9105) |
SAR 1.6W/kg (USA, Mexico, etc.) | 0.9W/kg (head) | 0.65W/kg (body) | feature not registered |
SAR 2W/kg (Europe, UK, etc.) | 0.4W/kg (head) | 1.19W/kg (body) | feature not registered |