Medion E4002 (MD 98388) 4" Dual SIM Smartphone
- Android 4.1 Jelly Bean
- 1Ghz dual core processor
- 512MB RAM, 4GB ROM
- 850/2100Mhz 3G support (Telstra/Voda OK, not good for Optus)
- Dual SIM
- 5.0MP rear camera, 0.3MP front camera
- microSD slot for up to 32GB
- unlocked
- 1500maH battery
- 1yr warranty, 60 day satisfaction return warranty
A $129 Telstra Huawei Y300 has what appears to be similar specs, though bigger 1700mAH battery but sells for less, though it's single SIM and locked to Telstra. Unlock codes may be available from bagman for ~$6. Overall better deal unless you need dual sim capability.
A $139 unlocked Optus Huawei G510 again appear to match it for specs, minus dual-sim. Comes with 4.5" IPS LCD. It's biggest feature being a 900/2100Mhz band if need it for Optus use. Or available in locked form: $149 Optus Huawei G510.
A $199 Huawei Ascend P1 is higher spec - JB, dual-core, 4.3" 960x540 LCD, 1GB of RAM, unlocked, 850/900/1900/2100 (quad-band) but no dual-SIM. -> NOTE: no stock ATM but DSE have supposedly ordered 2000 units. So expect them in the next few weeks.
A $199 Huawei Ascend G600 is higher spec - dual-core, 4.5" 960x540, 768MB RAM, unlocked, but no dual-SIM.
A $99 Vodafone Huawei G300/G300+ prev OZB page is lower specced with single-core CPU and ICS OS but may appeal to those wanting a low cost option. G300+ model having 850/900/2100 support so giving full 3G signal performance for Optus, Telstra and Vodafone.
NOTE: I'm no a Huawei rep or anything. This brand just happens to offer a lot for value at this point in time.
EDIT: Updated the ALDI phone with full specs.