MaxCom MM821 vs MaxCom Smart MS459 Harmony
| Vormgeving | Klepje | Touchscreen |
| Afmetingen | 98.50 x 48.00 x 18.00 mm | 138.00 x 69.00 x 11.00 mm |
| Gewicht |  | 180.00 g |
| Schermgrootte | 2.00" | 4.50" |
| Scherm | Kleurrijk / TFT (2.00") | Kleurrijk / TFT 16M kleuren 480 x 854 px (4.50") 218 ppi |
| Bescherming scherm |   | |
| Extra scherm | Kleurrijk / OLED (1.00") | |
| Secundaire bescherming scherm | | |
| Max. gesprekstijd | 2G: 180 min. (3.0 h) | |
| Max. standbytijd | 2G: 120 uur (5.0 dagen) | |
| Standaard batterij | | Li-Ion 2200 mAhBuy powerbank |
| Snel opladen van de batterij | | |
| Draadloos opladen van de batterij | | |
| Geheugen van het telefoonboek | 200 contacten | |
| Intern geheugen | | 16 GB |
| RAM-geheugen | | 2 GB |
| Geheugen kaarten |  microSD, microSDHC | microSD, microSDHC tot 32 GBBuy memory card |
| Processor | - | MediaTek MT6737 |
| CPU-klok | - | 1300 MHz |
| GPU | - | ARM Mali-T720 MP2 @650 MHz |
| Touchscreen | | |
| Dual SIM | | |
| SIM-kaarten standaard | | SingleSIM(microSIM) |
| Introductiedatum | | I. kwartaal 2019 |
| Andere namen van deze telefoon | - | - |
| GSM standaard | 850 900 1800 1900 | 850 900 1800 1900 |
| UMTS standaard (3G) | | 850 900 2100 |
| LTE-standaard | | FDD LTE: 2600, 2100, 1800, 800 |
| CDMA standaard | | |
| TD-SCDMA-standaard | | |
| UMA standaard | | |
CAMERA'S - TERUG
| Eerste camera | | |
| Matrix | 0.3 Mpx | 8 Mpx |
| Schermresolutie | 640x480 px | |
| Optische zoom | | |
| Flitser | | LED |
| Dual-color LED-flitser | | |
| Videoformaten | MPEG4, H.263, H.264 | |
| Extra | - | FF |
CAMERA'S - VOORKANT
| Eerste camera | | |
| Matrix | nd | 2 Mpx |
| Optische zoom | nd | |
| Flitser | nd | |
| Dual-color LED-flitser | nd | |
| Extra | nd | FF |
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 | | |
| HSUPA | | |
| HSPA | | |
| HSPA+ | | |
| LTE DL | | - |
| LTE UP | | 51.00 Mbit/s |
| WIMAX+ | | |
| GPRS | | |
| EDGE | | |
| Bluetooth | | |
| Perfil A2DP | | |
| HDMI | | |
| WiFi | | v802.11 b/g/n |
| WiFi frequenties | | 2,4 GHz |
| WiFi Direct | | |
| WiFi Display | | |
| DLNA | | |
| Miracast | | |
| WiFi-hotspot | | |
| IrDA | | |
| USB | v2.0 | Type-C |
| GPS | | |
| A-GPS | | |
| GLONASS | | |
| Beidou | | |
| NFC | | |
COMMUNICATIE EN BERICHTEN
| Call waiting | | |
| Video conferentie verbinding | | |
| Redirect | | |
| Push To Talk | | |
| Instant Messenger | | |
| SMS | 50 contacten | |
| EMS | | |
| MMS | | |
| Predictive text | | |
| Swype | | |
| E-mailclient | | POP3, IMAP4, SMTP |
| QWERTY toetsenbord | | |
| RSS reader | | |
Multimedia
| Radio | | |
| MP3 bediening | | |
| Stereo speakers | | |
| Audio Jack | 3.5 mm | 3.5 mm |
| HD Voice | | |
| Ringtone polyfoon | | |
| Video beltonen | | |
| Beltoon componist | | |
| Spelletjes | | |
| Java | | |
| 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 | | |