I ended up getting the Huawei Mate 9. Overall, I must say I am super pleased with it. Much better battery life than my old Z5. The 2nd sim does have 3G, so it should work just fine in OZ. Faster response than the old Z5 and the photos turn out quite good. It is a bigger phone, but not as big as I would of thought. Oh and the charger is amazing - it charges some 3%+ per min which is excellent given the short connections I usually have.