
Hotels around the world are using tech in surprising ways. The Yotel brand puts much of the check-in experience in the hands of its guests. This is particularly true at Yotel New York, where electronic check-in terminals dispense room keys and guest luggage is stored with the aid of a giant robot arm.

Who needs butlers when you have Botlrs? Last year, the Cupertino Aloft Hotel unveiled their answer to The Jetsons' Rosie. The Botlr isn't much of a talker. It's main function it seems it to make deliveries to guests' rooms.

By next year, hotels throughout Japan may employ eerily realistic-looking robots to check guests in, carry their baggage and even clean the rooms. The Henn-na Hotel in Nagasaki will trial the robots -- which will be multilingual -- when it opens in July.

More and more, hotels are ditching room keys and letting customers use their phones to gain entrance to their abodes.
"Whilst check-in and door keys on smartphones may seem new now, we expect these to be commonplace in five years," says Graham Long, VP of Samsung's Enterprise Business Team UK&I.
"Whilst check-in and door keys on smartphones may seem new now, we expect these to be commonplace in five years," says Graham Long, VP of Samsung's Enterprise Business Team UK&I.

At BLOC Hotels, guests can control all their room settings with their phones.

QT Hotels has taken elevator music to a new level. Elvis's "Are You Lonesome Tonight" is among the selections for a single occupant, while a couple -- or just two random individuals -- might be treated to Bill Withers' 'Just the Two of Us.'

The Wit in Chicago has in-room sensors that monitor body temperature and adjust the heating accordingly.

In 2012, the Ushua?a Ibiza Beach Hotel became the first in the world to introduce a biometric PayTouch system, which let guests pay for items using a biometric scan of their fingerprints. A year later, guests at the hotel could link their fingerprint scans to their Facebook page and take photos or update their status with a mere touch.

Infrared sensors in the rooms at Seattle's Hotel 1,000 detect guests' body heat and alert staff to their presence. The property also has a virtual golf course in the lobby with infrared tracking systems that allow guests to "play" 50 international golf courses.

London's Eccleston Square Hotel prides itself on being high-tech. Everything in the room, from the music to the lighting, is controlled by touch-sensative keypads. Each room is provided with a personal iPad 2 that lets guests order room service and beauty treatments. Even the shower walls can turn from clear to frosted at the touch of a button.

The rooms in the Prizeotel, Hamburg are fitted with music lamps -- lighting-stereo hybrids that let guests to listen to music via Bluetooth, recharge mobile phones and make phone calls.

Spain's Abadía Retuerta LeDomaine lets guests borrow a pair of Google Glass while they tour the property's vineyards and premises. Any photos taken on the device are saved to a memory card that guests can also take home.

The Peninsula Tokyo has even integrated technology into guest experiences geared towards children. The hotel offers an interactive, Pokemon -themed adventure where the littlest guests seek out clues from ten digital displays throughout the property. The experience culminates in a "secret chamber" that uses advanced optics technology to create a "magic mirror".