Nokia 6103 vs Nokia 6125
| Type | Clamshell | Clamshell | Clamshell | Clamshell |
| Dimensions | 85.00 x 45.00 x 24.00 mm | 90.00 x 46.00 x 23.60 mm | 92.00 x 48.00 x 20.00 mm | 93.90 x 46.90 x 21.50 mm |
| Weight | 97.00 g | 98.00 g | 112.00 g | 105.00 g |
| Display size | 1.80" | 1.80" | 2.20" | 2.20" |
| Display | Color / TFT 64k colors 128 x 160 px (1.80") 114 ppi | Color / TFT 256k colors 128 x 160 px (1.80") 114 ppi | Color / TFT 16M colors 240 x 320 px (2.20") 182 ppi | Color / TFT 16M colors 240 x 320 px (2.20") 182 ppi |
| Display protection | ||||
| Additional display | Color / STN 4k colors 96 x 65 px | Color / CSTN 64k colors 96 x 65 px | Color / TFT 256k colors 128 x 160 px (1.36") | Color / TFT 256k colors 128 x 160 px |
| Protection of the secondary display | ||||
| Talk time (max.) | 2G: 240 min. (4.0 h) | 2G: 300 min. (5.0 h) | 2G: 200 min. (3.3 h) | 2G: 390 min. (6.5 h) |
| Stand-by (max.) | 2G: 350 h. (14.6 days) | 2G: 280 h. (11.7 days) | 2G: 240 h. (10.0 days) | 2G: 300 h. (12.5 days) |
| Standard battery | Li-Ion 820 mAhBuy powerbank
| Li-Ion 820 mAhBuy powerbank
| Li-Ion 760 mAhBuy powerbank
| Li-Ion 1020 mAhBuy powerbank
|
| Quick battery charging | ||||
| Wireless battery charging | ||||
| Internal memory | 4.4 MB | 11 MB | 32 MB | 30 MB |
| End-user memory | 11 MB | |||
| RAM memory | 16 MB | |||
| Memory cards | microSD | microSD | microSD up to 4000 GBBuy memory card | |
| Operating system | Nokia OS | Nokia OS | - | Nokia OS |
| Interface | Series 40 2nd Edition | Series 40 3rd Edition | Series 40 3rd Edition | Series 40 5th Edition |
| Touchscreen | ||||
| SAR (10g) | 0,75 W/kg | 0,64 W/kg | 0,85 W/kg | 0,31 W/kg |
| DualSIM | ||||
| Announced | 2Q 2006 | 3Q 2007 | ||
| Other names | - | - | - | - |
| GSM frequencies | 900 1800 1900 | 850 900 1800 1900 | 850 900 1800 1900 | 850 900 1800 1900 |
| UMTS | 2100 | |||
| LTE standard | ||||
| CDMA | ||||
| Standard TD-SCDMA | ||||
| UMA |



