The Telstra Tough 5 T57 is a tough, rugged smartphone built by ZTE that has comes with the addition of a shock resistant casing. Telstra has added this ruggedised phone in their range as a replacement for the Telstra Tough 4. The Tough 5, T57, has an IP67 rating and is impervious to dust penetration and water resistant to a depth of about 1 metre. The T85 is a Telstra Blue Tick rated mobile phone with enhanced RF for excellent rural and metro coverage.
The Telstra Tough 5 T57 has the following specifications:
4G LTE: Band 1,3,7,8,28 with 150Mbps data (Cat 4)
3G UMTS: 850, 2100 MHz with 42Mbps data (HSPA+)
GSM: 900, 1800 MHz
Operating System Android 7.1.2
Memory 1GB RAM and 8GB ROM with >3GB user space. Supports up to 128GB microSD card