📱 Model features |
| Xiaomi Redmi Note 9S (128GB) | Samsung Galaxy A23 (SM-A235M 128GB) |
| Model | Redmi Note 9S (128GB) | Galaxy A23 (SM-A235M 128GB) |
| Other model names | Xiaomi Note 9S (M2003J6A1G Global version) 6GB RAM | Galaxy A23 4G SM-A235M Single-SIM NFC |
| Country or region available | 
(Global, International) |    
(Latin America), Argentina, Mexico, Peru |
| Brand | Xiaomi | Samsung |
| Release date | 4/30/2020, Announced: 3/23/2020 | 3/25/2022, Announced: 3/4/2022 |
| Depth | 8.8 millimeters (0.35 inches) | 8.4 millimeters (0.33 inches) |
| Size (width x height) | 76.68 x 165.75 millimeters (3.02 x 6.53 in) | 76.9 x 165.4 millimeters (3.03 x 6.51 in) |
| Weight | 209 grams (7.32 ounces) | 195 grams (6.83 ounces) |
| Build, materials | Plastic body, glass front/back | Plastic body, glass front |
| Protection against water and others | P2i certified: water repellent nano-coating | Not supported |
🤖 Operating System |
| Xiaomi Redmi Note 9S (128GB) | Samsung Galaxy A23 (SM-A235M 128GB) |
| System version | Android 10 | Android 12 |
| Firmware update | Android 11 | Android 13 |
| User Interface | MIUI 11 / 12 | One UI 4.1 / 5.0 |
⚙️ Processor |
| Xiaomi Redmi Note 9S (128GB) | Samsung Galaxy A23 (SM-A235M 128GB) |
| Chipset | 64bit: Qualcomm Snapdragon 720G (SM7125) (8nm) | 64bit: Qualcomm Snapdragon 680 (SM6225) (6nm) |
| CPU | Octa-core, 2 processors:
2x 2.3GHz Kryo 465 Gold (Dual-core)
6x 1.8GHz Kryo 465 Silver (Hexa-core) | Octa-core, 2 processors:
4x 2.4GHz Kryo 265 Gold (Quad-core)
4x 1.9GHz Kryo 265 Silver (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 618 (750MHz) | Qualcomm Adreno 610 |
| Performance (benchmark) | AnTuTu: 279625 (v8)
Geekbench: 1785 (v5.1)
GFXBench: 15fps (ES 3.1 onscreen) | AnTuTu: 273554 (v9)
Geekbench: 1632 (v5.1)
GFXBench: 6.7fps (ES 3.1 onscreen) |
💽 Memory and storage |
| Xiaomi Redmi Note 9S (128GB) | Samsung Galaxy A23 (SM-A235M 128GB) |
| RAM memory | 6GB LPDDR4X | 4GB LPDDR4X |
| Internal storage | 128GB (106GB available)
UFS 2.1 | 128GB (104GB available)
eMMC 5.1 |
| External storage | Until 512GB microSD, microSDXC
(dedicated slot) | Until 1TB microSD, microSDXC
(dedicated slot) |
📲 Display |
| Xiaomi Redmi Note 9S (128GB) | Samsung Galaxy A23 (SM-A235M 128GB) |
| Display type | TFT IPS LCD | TFT PLS |
| Screen size | 6.67" inches | 6.6" inches |
| Screen-to-body ratio | ~84.5% (screen-to-body ratio) | ~82.5% (screen-to-body ratio) |
| Display resolution | 1080x2400 pixels (20:9) | 1080x2408 pixels (20:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 395 PPI | 400 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 5 | Gorilla Glass 5 |
| Refresh rate | 60Hz | 90Hz |
| Display features | 450nits[typ]
HDR10 | Not supported |
📶 Mobile networks |
| Xiaomi Redmi Note 9S (128GB) | Samsung Galaxy A23 (SM-A235M 128GB) |
| 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)
nano-SIM (4FF) |
| Maximum Download / Upload | 800/150 Mbps | 400/150 Mbps |
| Network technology | 2G, 3G, 4G | 2G, 3G, 4G |
| 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 850/900/1700/1900/2100 |
| Primary 4G network | LTE Cat15/13 (1, 2, 3, 4, 5, 7, 8, 20, 28)
TD-LTE (38, 40)
VoLTE | LTE Cat13 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 26, 28, 66)
TD-LTE (38, 40, 41)
VoLTE |
| 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+, TD-LTE, LTE, LTE-A |
| Secondary 2G network | GSM 850/900/1800/1900 | Not supported |
| Secondary 3G network | UMTS 850/900/1700/1900/2100 | Not supported |
| Secondary 4G network | LTE Cat15/13 (1, 2, 3, 4, 5, 7, 8, 20, 28)
TD-LTE (38, 40)
VoLTE | Not supported |
| Secondary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A | Not supported |
📷 Camera |
| Xiaomi Redmi Note 9S (128GB) | Samsung Galaxy A23 (SM-A235M 128GB) |
| Back camera (main camera) | (quad camera)
48 megapixels
8MP ultrawidef/2.213mm1/4"1.12µm119°
5MP macrof/2.41/5"1.12µmAF
2MP depthf/2.4 | (quad camera)
50 megapixels
5MP ultrawidef/2.2123°1/5"1.12µm
2MP macrof/2.4
2MP depthf/2.4 |
| Main camera resolution | 8000x6000 pixels | 8160x6120 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/1.8 (aperture) | f/1.8 (aperture) |
| Focal length | 26mm lens | feature not registered |
| Sensor size | 1/2" inches | feature not registered |
| Pixel size | 0.8µm pixel | feature not registered |
| Autofocus | PDAF: phase detection autofocus | PDAF: phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | EIS: Digital stabilization | OIS: Optical stabilization |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Supported | Supported |
| HDR | HDR photo on both cameras | HDR photo on both cameras |
| Camera extras | 4K@30fps
1080p@30/60fps
1080p@120fps (slow motion)
720p@960fps (slow motion) | feature not registered |
📸 Front camera |
| Xiaomi Redmi Note 9S (128GB) | Samsung Galaxy A23 (SM-A235M 128GB) |
| Front camera (secondary) | 16 megapixels | 8 megapixels |
| Front camera resolution | 4608x3456 pixels | 3264x2448 pixels |
| Video recording (secondary) | Full HD (1920x1080) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.5 (aperture) | f/2.2 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | 1/3.06" inches | feature not registered |
| Pixel size | 1µm pixel | feature not registered |
🔉 Sound and multimedia |
| Xiaomi Redmi Note 9S (128GB) | Samsung Galaxy A23 (SM-A235M 128GB) |
| Loudspeaker | Mono sound (not stereo) | Mono sound (not stereo) |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | FM | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD, MKV | MP4, H.265, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity |
| Xiaomi Redmi Note 9S (128GB) | Samsung Galaxy A23 (SM-A235M 128GB) |
| USB | USB 2.0 Type-C, USB OTG On-The-Go | USB 2.0 Type-C, USB OTG On-The-Go |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | USB Type-C (reversible) | USB Type-C (reversible) |
| Bluetooth | 5.0 + A2DP/LE | 5.0 + A2DP/LE |
| WiFi | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO
WiFi Direct, hotspot | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO
WiFi Direct, hotspot |
| DLNA | Not supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou |
| NFC | Not supported | Supported |
| Infrared port | Supported | Not supported |
🧭 Sensors |
| Xiaomi Redmi Note 9S (128GB) | Samsung Galaxy A23 (SM-A235M 128GB) |
| Sensors | Accelerometer
Ambient Light sensor
Compass
Face unlock
Fingerprint sensor (side-mounted)
Gyroscope
Proximity sensor | Accelerometer
Compass
Face unlock
Fingerprint sensor (side-mounted)
Gyroscope
Virtual ambient light sensor
Virtual proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery |
| Xiaomi Redmi Note 9S (128GB) | Samsung Galaxy A23 (SM-A235M 128GB) |
| Battery type | LiPo: Li-Ion polymer (Non removable) | LiPo: Li-Ion polymer (Non removable) |
| Battery capacity | 5020 mAh | 5000 mAh |
| Charger, watts | 18W Wired fast charging | 25W Wired fast charging |
| Wireless charging | Not supported | Not supported |
| Talk time autonomy | feature not registered | 50 hours (2.1 days) |
| Standby | feature not registered | feature not registered |
➕ Other features |
| Xiaomi Redmi Note 9S (128GB) | Samsung Galaxy A23 (SM-A235M 128GB) |
| Call control | Voice dialing, Voice recorder, Voice commands | 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 | Supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | HTML, XHTML, HTML5 | HTML, XHTML, HTML5 |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Aurora Blue, Glacier White, Interstellar Black | • Colors: Black, White, Blue, Peach |
☢️ Radiation rate |
| Xiaomi Redmi Note 9S (128GB) | Samsung Galaxy A23 (SM-A235M 128GB) |
| SAR 1.6W/kg (USA, Mexico, etc.) | 0.96W/kg (head), 0.4W/kg (body) | 0.63W/kg (head), 0.78W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | 0.72W/kg (head), 0.98W/kg (body) | feature not registered |