These new HTC phones learn your habits and repeat them - so be careful what you do with them

The Taiwanese firm has unveiled the HTC U Play and U Ultra, both of which house AI software called HTC Sense Companion nlyp-that learns how the phone is used on a daily basis and tweaks its behaviour accordingly.

The phones are able to understand which apps and contacts are most regularly used and make any notifications received from or relating to them a priority.

The phones are different sizes, with the larger U Ultra also featuring a second, smaller screen at the top of the display that is designed to stay on and offer a faster window to important notifications and other information, a feature HTC calls Priority Assistant.

The U Ultra comes with a 5.7in display, while the U Play has a 5.2in screen.

Artificial intelligence is becoming increasingly prominent in gadgets, with Google having launched its Pixel smartphone - which contains the AI-powered Google Assistant - last year, while Amazon released its voice-controlled Amazon Echo smart home speaker in the UK.

HTC says the Sense Companion will be able to help users save battery life by reminding them to charge the phone during the day when it spots a busy calendar, while also suggesting extra clothing and leaving more time to travel if bad weather is forecast.

The tech giant said the new phones “represent a new beginning for HTC” and also feature a predominantly glass body for the first time.

HTC has struggled for market share against some of its rivals in the smartphone business in recent years, particularly following the rise of Chinese manufacturers such as Huawei, who have further crowded the mobile marketplace.

The firm’s Vive virtual reality system, however, has become one of the leaders in the VR sector since its launch last year.

The new U Ultra also features voice recognition abilities that can be used to control the device even when it is asleep, HTC said, adding it can be used to snooze or dismiss alarms as well as take or reject phone calls.

The phones also feature HTC’s SonicU audio technology, which involves earphones that use sonar-like pulses to analyse a user’s hearing ability.

But Ernest Doku, mobiles expert at uSwitch.com, said virtual and voice activated technology still had “a long way to go if it’s to win the hearts of smartphone-users”.

He said: “Only 4pc of Brits think of it as one of smartphones’ most useful features. It is certainly heartening that with these handsets HTC is making headway in the smartphone market - despite a subdued foray into the VR space with the Vive.

“Of course, with Samsung Galaxy S8 and iPhone 8 launches on the horizon, pricing will be absolutely key to maintaining relevance.”

The firm is yet to announce pricing for the UK, though it did reveal the phones will be available in four colours, including a new “cosmetic pink” finish.