Redmi Note 9 4G vs Samsung Galaxy A21s
| Vormgeving | Touchscreen | Touchscreen |
| Afmetingen | 162.30 x 77.28 x 9.60 mm | 163.70 x 75.30 x 8.90 mm |
| Gewicht | 198.00 g | 192.00 g |
| Schermgrootte | 6.53" | 6.50" |
| Scherm | Kleurrijk / LTPS TFT 16M kleuren 60 Hz 1080 x 2340 px (6.53") 395 ppi | Kleurrijk / IPS TFT 16M kleuren 60 Hz 720 x 1600 px (6.50") 270 ppi |
| Bescherming scherm | Corning Gorilla Glass Buy screen protector |  |
| Extra scherm | | |
| Secundaire bescherming scherm | | |
| Standaard batterij | Li-Po 6000 mAhBuy powerbank | Li-Ion 5000 mAhBuy powerbank |
| Snel opladen van de batterij | Quick Charge 3.0 | Fast Charging |
| Draadloos opladen van de batterij | | |
| Intern geheugen | 128 GB, 256 GB | 32 GB |
| RAM-geheugen | 4 GB, 6 GB, 8 GB | 3 GB |
| Geheugen kaarten |  microSD, microSDHC, microSDXC tot 512 GBBuy memory card | microSD, microSDHC, microSDXC tot 512 GBBuy memory card |
| Besturingssysteem | Android 10 | Android 10 |
| Interface | MIUI 12 | One UI 2.0 |
| Processor | Qualcomm Snapdragon 662 SM6115 | Samsung Exynos 850 |
| CPU-klok | 2000 MHz | 2000 MHz |
| GPU | Adreno 610 | - |
| Touchscreen | | |
| Dual SIM | | |
| SIM-kaarten standaard | DualSIM(nanoSIM, nanoSIM) | DualSIM(nanoSIM, nanoSIM) SingleSIM(nanoSIM) |
| Dual SIM-modus | dual standby | dual standby |
| Hybride Dual SIM | |  |
| Introductiedatum | IV. kwartaal 2020 | II. kwartaal 2020 |
| Andere namen van deze telefoon | M2010J19SC; Xiaomi Redmi Note 9 4G | SM-A217F; SM-A217M; SM-A217N |
| GSM standaard | 850 900 1800 1900 | 850 900 1800 1900 |
| UMTS standaard (3G) | 850 1900 2100 | 850 900 1700 1900 2100 |
| LTE-standaard | FDD LTE: 2100, 1800, 900, 850 TDD LTE: 2600, 2500, 2300, 2100, 1900 | FDD LTE: 2600, 2300, 1900, 1800, 1700, 850, 800, 700 |
| 5G-standaard | | |
| CDMA standaard | | |
| TD-SCDMA-standaard | 1900 2000 | |
| UMA standaard | | |
CAMERA'S - TERUG
| Eerste camera | | |
| Cameratype | Standaard lens | Standaard lens |
| Matrix | 48 Mpx | 48 Mpx |
| Sensor maat | 1/2 | |
| Pixel grootte | 0,8 µm | 0,8 µm |
| Optische zoom | | |
| Aantal lenzen | 6 | |
| Gezichtsveld | 79 ° | |
| Flitser | LED | LED |
| Dual-color LED-flitser | | |
| Videoresolutie | 1920x1080 px | 1920x1080 px |
| Videoformaten | H.263, H.264, MPEG4 - 30 fps | H.263, H.264, MPEG4 - 30 fps |
| Extra | AF, f/1.79 | AF, f/2.0 |
| Tweede camera | | |
| Cameratype | Groothoeklens | Groothoeklens |
| Matrix | 8 Mpx | 8 Mpx |
| Sensor maat | 1/4 | |
| Pixel grootte | 1,12 µm | 1,12 µm |
| Optische zoom | | |
| Aantal lenzen | 5 | |
| Gezichtsveld | 120 ° | |
| Flitser | LED | LED |
| Dual-color LED-flitser | | |
| Videoformaten | H.263, H.264, MPEG4 - 30 fps | H.263, H.264, MPEG4 - 30 fps |
| Extra | FF, f/2.2 | FF, f/2.2 |
| Derde camera | | |
| Cameratype | Diepte van het veld | Macro lens |
| Matrix | 2 Mpx | 2 Mpx |
| Pixel grootte | 1,75 µm | |
| Optische zoom | | |
| Aantal lenzen | 3 | |
| Gezichtsveld | 83 ° | |
| Brandpuntsafstand | 20 mm | |
| Flitser | LED | LED |
| Dual-color LED-flitser | | |
| Videoformaten | H.263, H.264, MPEG4 - 30 fps | H.263, H.264, MPEG4 - 30 fps |
| Extra | FF, f/2.4 | FF, f/2.4 |
| Vierde camera | | |
| Cameratype | nd | Diepte van het veld |
| Matrix | nd | 2 Mpx |
| Optische zoom | nd | |
| Flitser | nd | LED |
| Dual-color LED-flitser | nd | |
| Videoformaten | nd | H.263, H.264, MPEG4 - 30 fps |
| Extra | nd | FF, f/2.4 |
CAMERA'S - VOORKANT
| Eerste camera | | |
| Cameratype | Staande lens | Staande lens |
| Matrix | 8 Mpx | 13 Mpx |
| Sensor maat | | 1920x1080 |
| Pixel grootte | 1,12 µm | |
| Optische zoom | | |
| Aantal lenzen | 4 | |
| Gezichtsveld | 77 ° | |
| Flitser | | |
| Dual-color LED-flitser | | |
| Videoresolutie | 1920x1080 px | |
| Videoformaten | H.263, H.264, MPEG4 - 30 fps | H.263, H.264, MPEG4 - 30 fps |
| Extra | FF, f/2.0 | FF, f/2.2 |
SENSORS
| Accelerometer | | |
| Nabijheid | | |
| Licht sensor | | |
| Magnetometer | | |
| Gyroscoop | | |
| Barometer | | |
| Altimeter | | |
| Gravity sensor | | |
| Hall-effect sensor | | |
| Iris scanner | | |
| Vingerafdrukscanner | | |
| Thermometer | | |
| Hygrometer | | |
Gegevens transmissie
| xHTML | | |
| WAP | v2.0 | v2.0 |
| HSCSD | | |
| HSDPA | 42.20 Mbit/s | 42.20 Mbit/s |
| HSUPA | 5.76 Mbit/s | 5.76 Mbit/s |
| HSPA | | |
| HSPA+ | | |
| LTE DL | - | - |
| LTE UP | - | - |
| WIMAX+ | | |
| GPRS | | classe 33 |
| EDGE | | classe 33 |
| Bluetooth | v4.2 | v5.0 |
| Perfil A2DP | | |
| HDMI | | |
| WiFi | v802.11 a/b/g/n/ac | v802.11 a/b/g/n/ac |
| WiFi frequenties | 2,4 GHz; 5 GHz | 2,4 GHz; 5 GHz |
| WiFi Direct | | |
| WiFi Display | | |
| DLNA | | |
| Miracast | | |
| WiFi-hotspot | | |
| IrDA | | |
| USB | v2.0 Type-C | v2.0 Type-C |
| GPS | | |
| A-GPS | | |
| GLONASS | | |
| Beidou | | |
| Galileo | | |
| QZSS | | |
| NFC | | |
COMMUNICATIE EN BERICHTEN
| Call waiting | | |
| Video conferentie verbinding | | |
| Redirect | | |
| Push To Talk | | |
| Instant Messenger | | |
| SMS | | |
| EMS | | |
| MMS | | |
| Predictive text | T9 | T9 |
| Swype | | |
| E-mailclient | POP3, IMAP4, SMTP | POP3, IMAP4, SMTP |
| QWERTY toetsenbord | | |
| RSS reader | | |
Multimedia
| Radio | | |
| MP3 bediening | | |
| Stereo speakers | 2 | |
| Audio Jack | 3.5 mm | 3.5 mm |
| HD Voice | | |
| Geluidsformaten | AAC, AAC+, AMR, APE, FLAC, MKA, OGG, WAV, eAAC+ | 3GA, AAC, AMR, AWB, FLAC, IMY, M4A, MID, MIDI, MXMF, OGA, OGG, OTA, RTTTL, RTX, WAV, WMA, XMF |
| Ringtone polyfoon | | |
| Video beltonen | | |
| Beltoon componist | | |
| Spelletjes | | |
| Java | ART | ART |
| Videoverbinding | | |
| DVB-H televisie | | |
| TV aansluiting | | |
PIM EN EXTRA FUNCTIES
| Klok | | |
| Stopwatch | | |
| Alarm | | |
| Calculator | | |
| Valuta Converter | | |
| Organizer | | |
| Agenda | | |
| Vliegtuigstand | | |
| SyncML | | |
| Data en fax | | |
| Schermbeveiliging | | |
| Thema's | | |
| Verwisselbare cover | | |
| Voice picking | | |
| Speaker | | |
| Memorecorder | | |
| Trilalarm | | |
