Overmax Vertis Expi vs Lenovo A820
| Vormgeving | Touchscreen | Touchscreen | Touchscreen | Touchscreen |
| Afmetingen | 134.00 x 67.00 x 9.00 mm | 135.00 x 68.20 x 9.90 mm | 124.00 x 62.00 x 8.40 mm | 146.00 x 73.00 x 9.00 mm |
| Gewicht |  | 145.00 g | 105.00 g | |
| Schermgrootte | 4.50" | 4.50" | 4.30" | 5.00" |
| Scherm | Kleurrijk / IPS TFT 540 x 960 px (4.50") 245 ppi | Kleurrijk / IPS TFT 16M kleuren 540 x 960 px (4.50") 245 ppi | Kleurrijk / IPS TFT 16M kleuren 540 x 960 px (4.30") 256 ppi | Kleurrijk / IPS TFT 540 x 960 px (5.00") 220 ppi |
| Bescherming scherm |   | | Asahi Dragontrail Buy screen protector | |
| Extra scherm | | | | |
| Secundaire bescherming scherm | | | | |
| Max. gesprekstijd | | | 2G: 378 min. (6.3 h) | |
| Max. standbytijd | | | 3G: 180 uur (7.5 dagen) | |
| Standaard batterij | Li-Ion 2000 mAhBuy powerbank | Li-Ion 2000 mAhBuy powerbank | Li-Ion 1600 mAhBuy powerbank | Li-Ion 2600 mAhBuy powerbank |
| Snel opladen van de batterij | | | | |
| Draadloos opladen van de batterij | | | | |
| Intern geheugen | 4 GB | 4 GB | 4 GB | 8 GB |
| RAM-geheugen | 1 GB | 1 GB | 1 GB | 1 GB |
| Geheugen kaarten |  microSD, microSDHC tot 32 GBBuy memory card | microSD, microSDHC tot 32 GBBuy memory card | microSD, microSDHC tot 32 GBBuy memory card | microSD, microSDHC tot 32 GBBuy memory card |
| Besturingssysteem | Android 4.2 Jelly Bean | Android 4.1.2 Jelly Bean | Android 4.1 Jelly Bean | Android 4.2 Jelly Bean |
| Processor | Broadcom BCM23550 | MediaTek MT6589 | Qualcomm MSM8225Q | MediaTek MT6582M |
| CPU-klok | 1200 MHz | 1200 MHz | 1200 MHz | 1200 MHz |
| GPU | - | PowerVR SGX544 MP1 @286 MHz | Adreno 203 | ARM Mali-400 MP2 @416 MHz |
| Touchscreen | | | | |
| SAR | | 0,368 W/kg | | |
| Dual SIM | | | | |
| Hybride Dual SIM | | | | |
| Andere namen van deze telefoon | - | - | Mist White; KM0406 | - |
| GSM standaard | 900 1800 1900 | 900 1800 1900 | 850 900 1800 1900 | 900 1800 1900 |
| UMTS standaard (3G) | 900 2100 | 900 2100 | 900 2100 | 900 2100 |
| LTE-standaard | | | | |
| CDMA standaard | | | | |
| TD-SCDMA-standaard | | | | |
| UMA standaard | | | | |
CAMERA'S - TERUG
| Eerste camera | | | | |
| Matrix | 8 Mpx | 8 Mpx | 8 Mpx | 8 Mpx |
| Schermresolutie | 3264x2448 px | 3264x2448 px | 3264x2448 px | 3264x2448 px |
| Optische zoom | | | | |
| Flitser | LED | | LED | LED |
| Dual-color LED-flitser | | | | |
| Videoresolutie | 1280x720 px | | | 1280x720 px |
| Videoformaten | H.263, H.264, MPEG4 | H.263, H.264, MPEG4 | MPEG4, H.263, H.264 | H.263, H.264, MPEG4 |
| Extra | - | - | AF | - |
CAMERA'S - VOORKANT
| Eerste camera | | | | |
| Matrix | 2 Mpx | nd | 2 Mpx | 2 Mpx |
| Schermresolutie | 1600x1200 px | nd | 1600x1200 px | 1600x1200 px |
| Optische zoom | | nd | | |
| Flitser | | nd | | |
| Dual-color LED-flitser | | nd | | |
| Videoformaten | H.263, H.264, MPEG4 | nd | MPEG4, H.263, H.264 | H.263, H.264, MPEG4 |
| Extra | - | nd | - | - |
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 | v2.0 | v2.0 |
| HSCSD | | | | |
| HSDPA | | 21.00 Mbit/s | 7.20 Mbit/s | |
| HSUPA | | 5.76 Mbit/s | 5.76 Mbit/s | |
| HSPA | | | | |
| HSPA+ | | | | |
| LTE DL | | | | |
| LTE UP | | | | |
| WIMAX+ | | | | |
| GPRS | | classe 12 | | |
| EDGE | | | | |
| Bluetooth | | | v3.0 | |
| Perfil A2DP | | | | |
| HDMI | | | | |
| WiFi | v802.11 b/g/n | v802.11 b/g/n | v802.11 b/g/n | v802.11 b/g/n |
| WiFi frequenties | 2,4 GHz | 2,4 GHz | 2,4 GHz | 2,4 GHz |
| WiFi Direct | | | | |
| WiFi Display | | | | |
| DLNA | | | | |
| Miracast | | | | |
| WiFi-hotspot | | | | |
| IrDA | | | | |
| USB | | v2.0 | v2.0 | v2.0 |
| GPS | | | | |
| A-GPS | | | | |
| GLONASS | | | | |
| Beidou | | | | |
| NFC | | | | |
COMMUNICATIE EN BERICHTEN
| Call waiting | | | | |
| Video conferentie verbinding | | | | |
| Redirect | | | | |
| Push To Talk | | | | |
| Instant Messenger | | | | |
| SMS | | | 3000 contacten | |
| EMS | | | | |
| MMS | | | | |
| Predictive text | | T9 | XT9 | |
| Swype | | | | |
| E-mailclient | POP3, IMAP4, SMTP | POP3, IMAP4, SMTP | POP3, IMAP4, SMTP | POP3, IMAP4, SMTP |
| QWERTY toetsenbord | | | | |
| RSS reader | | | | |
Multimedia
| Radio | | | | |
| MP3 bediening | | | | |
| Stereo speakers | | | | |
| Audio Jack | 3.5 mm | 3.5 mm | 3.5 mm | 3.5 mm |
| HD Voice | | | | |
| Geluidsformaten | AAC, AAC+, AMR, APE, FLAC, OGG, WAV, WMA | AAC, AAC+, AMR, WAV, WMA, eAAC+ | AAC, AAC+, MPEG4, OGG, WMA | AAC, AAC+, AMR, APE, FLAC, OGG, WAV, WMA |
| Ringtone polyfoon | | 64 voice | | |
| Video beltonen | | | | |
| Beltoon componist | | | | |
| Spelletjes | | | | |
| Java | Dalvik | Dalvik | Dalvik | Dalvik |
| 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 | | | | |