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Specification wise there are no differences, the A1-850 is a newer generation tablet. The A1-850 uses a lower watt adapter than the A1-840.
Sorry, there was a problem. Please try again later.The 840 comes with full HD
Sorry, there was a problem. Please try again later.Huge difference. The IPS display and the glass. This tablet does not keep fingerprints on the screen. I don't know how they do it, but it works. The IPS display is much richer and viewable
Sorry, there was a problem. Please try again later.I own both models and the only difference I've noticed so far is the 850 comes with a "float gadget" widget pre installed. Literally that's all.
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