Nokia Lumia 830 vs Nokia Lumia 925
| Type | Touch | Touch |
| Dimensions | 139.40 x 70.70 x 8.50 mm | 129.00 x 70.60 x 8.50 mm |
| Weight | 150.00 g | 139.00 g |
| Display size | 5.00" | 4.50" |
| Display | Color / IPS TFT 16M colors 720 x 1280 px (5.00") 294 ppi | Color / AMOLED 16M colors 768 x 1280 px (4.50") 332 ppi |
| Display protection | Corning Gorilla Glass Buy screen protector
 | Corning Gorilla Glass Buy screen protector
|
| Additional display |  | |
| Protection of the secondary display | | |
| Talk time (max.) | 2G: 774 min. (12.9 h) 3G: 888 min. (14.8 h) | 2G: 1098 min. (18.3 h) 3G: 768 min. (12.8 h) |
| Stand-by (max.) | 2G: 528 h. (22.0 days) | 2G: 440 h. (18.3 days) 3G: 440 h. (18.3 days) |
| Playback time (max.) | nd | Audio: 55 h (2.3 days) Video: 6,6 h (0.3 days) |
| Standard battery | Li-Ion 2200 mAhBuy powerbank
| Li-Ion 2000 mAhBuy powerbank
|
| Quick battery charging | | |
| Wireless battery charging | Qi |  |
| Internal memory | 16 GB | 16 GB |
| RAM memory | 1 GB | 1 GB |
| Memory cards | microSD, microSDHC, microSDXC up to 128 GBBuy memory card | |
| Operating system | MS Windows Phone 8.1 | MS Windows Phone 8 |
| Processor | Qualcomm Snapdragon 400 8926 | Qualcomm MSM8960 |
| Processor clock | 1200 MHz | 1500 MHz |
| GPU | Adreno 305 | Adreno 225 |
| Touchscreen | | |
| DualSIM | | |
| SIM cards standard | SingleSIM(nanoSIM) | SingleSIM(microSIM) |
| Announced | 3Q 2014 | 2Q 2013 |
| Other names | - | - |
| GSM frequencies | 850 900 1800 1900 | 850 900 1800 1900 |
| UMTS | 850 900 1900 2100 | 850 900 1900 2100 |
| LTE standard | FDD LTE: 2600, 2100, 1800, 900, 800 | FDD LTE: 2600, 2100, 1800, 900, 800 |
| CDMA | | |
| Standard TD-SCDMA | | |
| UMA | | |
CAMERAS - BACK
| First camera | | |
| Photo matrix | 10 Mpx | 8 Mpx |
| Resolution |  | 3264x2448 px |
| Optical zoom | | |
| Digital zoom | 4x | 4x |
| Flash | LED | 2x LED |
| Dual-colour LED flash | | |
| Video resolution | 1920x1080 px | 1920x1080 px |
| Video formats | H.263, H.264/AVC, MPEG4 | H.263, H.264, MPEG4 - 30 fps |
| Additional | AF | AF |
CAMERAS - FRONT
| First camera | | |
| Photo matrix | 0.9 Mpx | 1.2 Mpx |
| Resolution | | 1280x960 px |
| Optical zoom | | |
| Flash | | |
| Dual-colour LED flash | | |
| Video formats | H.263, H.264/AVC, MPEG4 | H.263, H.264, MPEG4 - 30 fps |
| Additional | - | FF |
SENSORS
| Accelerometer | | |
| Proximity | | |
| Light | | |
| Magnetometer | | |
| Gyroscope | | |
| Barometer | | |
| Altimeter | | |
| Gravity | | |
| Hall-effect | | |
| Iris scanner | | |
| Fingerprint scanner | | |
| Thermometer | | |
| Hygrometer | | |
Data transfer
| xHTML | | |
| WAP | | 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 | | 102.00 Mbit/s |
| LTE UP | | 51.00 Mbit/s |
| WIMAX+ | | |
| GPRS | | |
| EDGE | | |
| Bluetooth | v4.0 | v3.0 |
| A2DP Profile | | |
| HDMI | | |
| WiFi | v802.11 a/b/g/n | v802.11 a/b/g/n |
| WiFi frequencies | 2,4 GHz | 2,4 GHz |
| WiFi Direct | | |
| WiFi Display | | |
| DLNA | | |
| Miracast | | |
| WiFi hotspot | | |
| IrDA | | |
| USB | v2.0 | v2.0 |
| GPS | | |
| A-GPS | | |
| GLONASS | | |
| Beidou | | |
| NFC | | |
COMMUNICATION AND MESSAGING
| Call waiting | | |
| Conferency | | |
| Call forwarding | | |
| Push To Talk | | |
| Instant Messenger | | |
| SMS | | |
| EMS | | |
| MMS | | |
| Dictionary | OTHER | XT9 |
| Swype | | |
| e-mail client | POP3, SMTP, IMAP4 | POP3, IMAP4, SMTP |
| Hardware QWERTY keyboard | | |
| RSS Reader | | |
Multimedia
| Radio | | |
| MP3 | | |
| Stereo speakers | | |
| Audio Jack | 3.5 mm | 3.5 mm |
| HD Voice | | |
| Sound formats | 3G2, 3GP, AAC, AMR, ASF, M4A, MP4, WMA | 3G2, 3GP, AAC, AMR, ASF, M4A, MP4, WMA |
| Polyphony | | |
| Video ringtone | | |
| Ring composer | | |
| Games | | |
| Java | | |
| Videophone | | |
| DVB-H television | | |
| TV-Out | | |
PIM AND ADDITIONAL FUNCTIONS
| Watch | | |
| Stopwatch | | |
| Alarm | | |
| Calculator | | |
| Currency converter | | |
| Organizer | | |
| Calendar | | |
| Flight mode | | |
| SyncML | | |
| Data and fax | | |
| Screensaver | | |
| Themes | | |
| Interchangeable covers | | |
| Voice dial | | |
| Speakerphone | | |
| Recorder | | |
| Vibrations | | |
