'The Lumia 640 is one of the most capable affordable phones currently available, which is why we gave it a TrustedReviews award at this year’s Mobile World Congress.'
'Distinctive Lumia design with bright color options. '
'Something completely new for the Lumia 640 is a front-facing camera.'
'Large 5-inch screen'
'It’s disappointing that Sony hasn’t matched the Z3’s Full HD display, but this is still good for a phone this size, and it matches what the competition currently offers.'
'The Sony Xperia Z3 Compact packs a larger screen than its predecessor in the same size body, it has tonnes of power, it's completely waterproof allowing for underwater photography and it has a good camera.'
'fairly sharp picture'
'Very heavy Android skin.'
'With decent hardware and a price tag of around ?300, it is a solid phone. '
'Video recording quality is bad.'
'It will feel comfortable to most users and the Xperia M4 Aqua is very thin and light for a mid-range phone at 7.3 mm and 136 g.'
'the upper half of the rear of the phone became noticeably hot after just a few minutes of even ordinary use.'
'The G3's flagship feature is its 5.5-inch, 2,560-by-1,440 screen—the highest resolution you'll see anywhere. '
'The slim screen bezels and tapered edge design also help the LG G3 feel reasonably trim when held. '
'It's unsurprising that performance is smooth and nippy the vast majority of the time.'
'nearly all Lumia phones'
'It's the best equipped smartphone in the Lumia 640 series - it packs a massive 5.7" screen and a 13MP camera. '
'You also get 1080p video capture on both the front and rear cameras, with good results. '
'Daylight readability can be a significant problem. '
'The aperture is of the G Lens camera is reasonably wide (f/2.0), which should also help the camera achieve good results in low-light conditions, as it lets more light reach the sensor.'
'Improved screen contrast and angles'
'The Xperia Z2 is packed with the latest wireless technology so you'll be sorted with dual-band Wi-Fi up to 11ac, Bluetooth 4.0 with aptX, NFC and 4G LTE are all on-board. '