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Galaxy S7 Edge and S7
Samsung's latest flagship phones restore a couple of popular features dropped from the previous generation.
The Galaxy S7 and Galaxy S7 Edge both accept MicroSD cards, allowing their storage to be expanded, and can also be submerged underwater.
In addition, they feature new gaming tech and a rear camera that should cope better in low-light conditions.
Their overall design, however, is similar to the Galaxy S6 line-up.
Some experts suggested that could pose a challenge.
The Galaxy S7 and Galaxy S7 Edge both accept MicroSD cards, allowing their storage to be expanded, and can also be submerged underwater.
In addition, they feature new gaming tech and a rear camera that should cope better in low-light conditions.
Their overall design, however, is similar to the Galaxy S6 line-up.
Some experts suggested that could pose a challenge.
The new phones allow a MicroSD card to be added to the same tray as the device's SIM card
"Although there are significant improvements under the bonnet with the camera, the chipset, the removable storage and the water resistance, Samsung will have to make sure that's visible to consumers," commented Ian Fogg from the IHS Technology consultancy.
"Because at a glance they look to be the same as last year's model."
Samsung does not disclose smartphone sales numbers. However its share of the market dropped by 2% in 2015, according to research firm IDC, at a time when Apple, Huawei and Xiaomi made gains.
Even so, IDC's data still indicates the South Korean firm remains the bestselling brand by a wide margin.
"Although there are significant improvements under the bonnet with the camera, the chipset, the removable storage and the water resistance, Samsung will have to make sure that's visible to consumers," commented Ian Fogg from the IHS Technology consultancy.
"Because at a glance they look to be the same as last year's model."
Samsung does not disclose smartphone sales numbers. However its share of the market dropped by 2% in 2015, according to research firm IDC, at a time when Apple, Huawei and Xiaomi made gains.
Even so, IDC's data still indicates the South Korean firm remains the bestselling brand by a wide margin.
The new devices were unveiled in Barcelona on the eve of the Mobile World Congress tech show.
Optimised for games
While the Galaxy S7 retains the same sized screen as the S6, the S7 Edge's display has grown slightly from 5.1in (13cm) to 5.5in (14cm).
The Edge version is also slightly curvier than before and its camera protrudes less far out.
In addition, the "edged" parts of the screen now provide shortcuts to email, different photo modes and third-party apps.
Optimised for games
While the Galaxy S7 retains the same sized screen as the S6, the S7 Edge's display has grown slightly from 5.1in (13cm) to 5.5in (14cm).
The Edge version is also slightly curvier than before and its camera protrudes less far out.
In addition, the "edged" parts of the screen now provide shortcuts to email, different photo modes and third-party apps.
Samsung says it has sealed the phones "from the inside" to make them water resistant
Both phones:
now accept MicroSD cards with up to 200 gigabytes of storage, which fit onto the same tray as their SIM cards
have higher capacity batteries - the S7 Edge can reportedly play up to 15 hours of high definition video on a charge
have IP68 water resistance ratings, meaning they can be safely immersed to depths of 1.5m (4.9ft) for up to 30 minutes
have an "always on display" function that shows notifications and the time without needing to wake the screen up
retain the wireless charging capabilities of the S6 models
They also feature processors that are faster than before and capable of supporting the Vulkan API (application program interface).
Both phones:
now accept MicroSD cards with up to 200 gigabytes of storage, which fit onto the same tray as their SIM cards
have higher capacity batteries - the S7 Edge can reportedly play up to 15 hours of high definition video on a charge
have IP68 water resistance ratings, meaning they can be safely immersed to depths of 1.5m (4.9ft) for up to 30 minutes
have an "always on display" function that shows notifications and the time without needing to wake the screen up
retain the wireless charging capabilities of the S6 models
They also feature processors that are faster than before and capable of supporting the Vulkan API (application program interface).
Samsung says support for the Vulkan AI should reduce the complex games take on battery life
This is an open standard that lets games make more efficient use of a chip's graphics processing units (GPUs). Modern PCs and games consoles can already support Vulkan, but Samsung says its smartphones are the first to do so.
The firm has also added a "thermal spreader" to the phone's innards. This is a 0.4mm-thick tube of water that turns to steam, cooling down the processor, when required.
It should allow the handset to better handle graphics-intensive titles without overheating.
In addition, Samsung has made it easier to record gameplay for later playback.
Dual pixel autofocus
The new rear camera introduces two innovations.
This is an open standard that lets games make more efficient use of a chip's graphics processing units (GPUs). Modern PCs and games consoles can already support Vulkan, but Samsung says its smartphones are the first to do so.
The firm has also added a "thermal spreader" to the phone's innards. This is a 0.4mm-thick tube of water that turns to steam, cooling down the processor, when required.
It should allow the handset to better handle graphics-intensive titles without overheating.
In addition, Samsung has made it easier to record gameplay for later playback.
Dual pixel autofocus
The new rear camera introduces two innovations.
Firstly, it has a bigger aperture of f/1.7 rather than f/1.9. This means the lens lets in nearly double the amount of light than before. The pixels are also slightly bigger, which should mean the phones are more capable at taking low-light photos without the need for flash.
Secondly, its sensor is the first on a smartphone to feature "dual pixel autofocus".
This means each pixel can be used to both record the image and determine focus rather than just one or the other. This enables the phone to lock focus to an object more quickly for stills, and deliver smoother focus tracking in video mode.
The technology was first developed by Canon, and until now was limited to the Japanese firm's DSLR (digital single-lens reflex) and Cinema cameras.
Secondly, its sensor is the first on a smartphone to feature "dual pixel autofocus".
This means each pixel can be used to both record the image and determine focus rather than just one or the other. This enables the phone to lock focus to an object more quickly for stills, and deliver smoother focus tracking in video mode.
The technology was first developed by Canon, and until now was limited to the Japanese firm's DSLR (digital single-lens reflex) and Cinema cameras.
"It's not easy to explain or even show off at the point of sale, and that's something Samsung will struggle with," commented IDC analyst Francisco Jeronimo.
"But I believe those users who start using it will quickly realise it does make a difference and will help them get better pictures."
One consequence of adding the new technologies is that the camera's resolution has had to decrease from 16 megapixels to 12MP.
"But I believe those users who start using it will quickly realise it does make a difference and will help them get better pictures."
One consequence of adding the new technologies is that the camera's resolution has had to decrease from 16 megapixels to 12MP.
The Gear 360 camera can capture video that is suitable for playback on virtual reality headsets
The South Korean firm also introduced a 360-degree camera. It can film footage for playback on its virtual reality headset, which Samsung makes in partnership with Facebook's Oculus division.
The Gear 360's interactive pictures and videos can also be uploaded to Facebook and YouTube.
The device is only compatible with the firm's own handsets. That contrasts with a similar camera unveiled by LG that works with both Android and iOS phones.
One analyst suggested such kit could "add a new dimension" to weddings and other big occasions.
The South Korean firm also introduced a 360-degree camera. It can film footage for playback on its virtual reality headset, which Samsung makes in partnership with Facebook's Oculus division.
The Gear 360's interactive pictures and videos can also be uploaded to Facebook and YouTube.
The device is only compatible with the firm's own handsets. That contrasts with a similar camera unveiled by LG that works with both Android and iOS phones.
One analyst suggested such kit could "add a new dimension" to weddings and other big occasions.
Facebook's Mark Zuckerberg made a surprise appearance to discuss the firms' virtual reality partnership
"These cameras will allow users to easily create their own 360-degree content, and this will help fuel demand for virtual reality accessories and broader acceptance of the new types of photos and videos," said Ben Wood from CCS Insight.
It was also revealed that the Samsung Pay smart wallet service would be expanded to the UK, Australia, Brazil, Canada, China, Singapore and Spain this year.
Sales dilemma
One company watcher suggested it was a "no brainer" to pick the new phones over the Galaxy S5 and earlier handsets, but a harder sell when compared to the S6 range.
"These cameras will allow users to easily create their own 360-degree content, and this will help fuel demand for virtual reality accessories and broader acceptance of the new types of photos and videos," said Ben Wood from CCS Insight.
It was also revealed that the Samsung Pay smart wallet service would be expanded to the UK, Australia, Brazil, Canada, China, Singapore and Spain this year.
Sales dilemma
One company watcher suggested it was a "no brainer" to pick the new phones over the Galaxy S5 and earlier handsets, but a harder sell when compared to the S6 range.
Samsung says a thin tube of water keeps the processor of its new smartphones cool
"Samsung has a problem that is actually shared by most smartphone companies today," said Carolina Milanesi from Kantar Worldpanel ComTech.
"Each year's phones look more and more alike and what gets tweaked is more of a finesse to what's inside, and that's really hard to convince customers to pay extra for in stores."
Even so, a spokesman for Samsung said it intended to leave the S6 phones on sale alongside the new devices.
"Samsung has a problem that is actually shared by most smartphone companies today," said Carolina Milanesi from Kantar Worldpanel ComTech.
"Each year's phones look more and more alike and what gets tweaked is more of a finesse to what's inside, and that's really hard to convince customers to pay extra for in stores."
Even so, a spokesman for Samsung said it intended to leave the S6 phones on sale alongside the new devices.
Source: BBC
