It looks like Samsung won't be the only kid on the playground with a large 'phablet' smartphone, with DigiTimes reporting that HTC are set to launch a 5-inch smartphone somewhere in the September-October timeframe. The flagship phone from HTC would sport a resolution of 1794x1080.
Samsung were the first ones out of the gate with a 5-inch phone, already have plans for a 5.5-inch device, the Galaxy Note II, and we should see this in the next couple of weeks. The success of Samsung's original 5-inch Galaxy Note has sparked interest from more Korean phone makers, where we saw fellow phone maker LG release the 5-inch Optimus Vu just a couple of months ago.
HTC's entry into the 'phablet' market should see the market continue to expand, but I have a feeling it will cut down on tablet sales. Considering that HTC and LG aren't doing too well in tablets, and Samsung are the only real threat out of the three companies combined, a 'phablet' spike in sales would be good to combat the iPhone and iPad sales.
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