Ericsson T20s vs Ericsson T28s
| Type | Flip | Flip | Flip | Flip |
| Dimensions | 101.00 x 54.00 x 28.00 mm | 97.00 x 50.00 x 15.00 mm | 97.00 x 50.00 x 22.00 mm | 96.00 x 50.00 x 18.00 mm |
| Weight | 128.00 g | 83.00 g | 104.00 g | 86.00 g |
| Display size | - | - | - | - |
| Display | Mono / LCD | Mono / LCD 102 x 52 px | Mono / LCD | Mono / LCD 101 x 54 px |
| Display protection | ||||
| Additional display | ||||
| Protection of the secondary display | ||||
| Talk time (max.) | 2G: 600 min. (10.0 h) | 2G: 215 min. (3.6 h) | 2G: 420 min. (7.0 h) | 2G: 660 min. (11.0 h) |
| Stand-by (max.) | 2G: 200 h. (8.3 days) | 2G: 50 h. (2.1 days) | 2G: 126 h. (5.3 days) | 2G: 300 h. (12.5 days) |
| Standard battery | Li-Ion 1150 mAhBuy powerbank
| Li-Po 500 mAhBuy powerbank
| Li-Ion 850 mAhBuy powerbank
| Li-Po 600 mAhBuy powerbank
|
| Quick battery charging | ||||
| Wireless battery charging | ||||
| Phonebook memory | 99 places | 99 places | 200 places | 510 places |
| Memory cards | ||||
| Touchscreen | ||||
| SAR (10g) | 0,55 W/kg | 1,27 W/kg | 1,18 W/kg | 1,6 W/kg |
| DualSIM | ||||
| Other names | - | - | - | - |
| GSM frequencies | 900 1800 | 900 1800 | 900 1800 | 900 1800 1900 |
| UMTS | ||||
| LTE standard | ||||
| CDMA | ||||
| Standard TD-SCDMA | ||||
| UMA |



