It seems that even though the E72 has a rather higher specs than the E71, the E72 is more energy-efficient. This is shown by longer battery life even though the battery type is the same (Li-Po 1500 mAh (BP-4L))
* E72 Standby time: 480 hours (E71 up to 410 hours) * E72 Talktime: up to 12 hours 30 min (E71 up to 10 hours 30 min)
In this part, once again the Nokia E72 beats the Nokia E71. The Nokia E71 that has 110 MB storage with 128 RAM is good enough, but Nokia E72 take it further by adding 140MB more storage to the E72. The RAM is still the same though. Another difference is the max capacity of expandable memory supported of the phones. E71 supports up to 8GB while E72 supports up to 16GB. Yes. Storage is important these days
E71 vs E72 Data Connection
Here is the part where I fell in love with the new Nokia E72. It has HSDPA 10.2Mbps down and HSUPA 2Mbps up! This is far better than the E71?s HSDPA 3.6Mbps down and no HSUPA. So in the connectivity, the E72 is far better than its predecessor the E71.
Camera Comparison
Nokia also upgrades the E72 camera. The new E72 still has the E71 features such as the autofocus and LED Flash, but the new E72 boasts a 5 megapixel camera with larger resolution (2592×1944) compared to the E71 (3.2 megapixel. 2048×1536 pixels). So it seems that the E series is adding a flavour of entertainment in a business phone with the camera and the headset jack I talked about
UI comparison
The E72 has a faster interface (thanks to the processor) and a nicer navigation transition effects compared to the Nokia E71. Another difference is the contextualization of e-mail. The 72 contextualizes your mail server by adding icons as to which service you?re actually using, for example, Gmail. This is different with the old E71 system that label email according to the name you gave it (i.e ?personal mail? or ?work email?).