Here comes the new HTC phones under the HTC U series . HTC announced the HTC U Ultra and a smaller HTC U play . Both phones are almost same , but for the lack on secondary display on the HTC U play , reduced battery capacity , Mediatek Chipset and lesserRAM , full specs below

HTC U Ultra specifications

5.7-inch (1440 x 2560 pixels) Quad HD Super LCD 5 display with Gorilla Glass 5 protection / Sapphire Glass (128GB version)
2.0-inch (160 x 1040 pixels) 520 PPI Super LCD 5 secondary display
Quad-Core Qualcomm Snapdragon 821 64-bit processor (2×2.15 GHz Kryo and 2×1.6 GHz Kryo) with Adreno 530 GPU
4GB RAM, 64/128GB internal storage, expandable memory up to 2TB with microSD
Android 7.0 (Nougat) with HTC Sense UI
Hybrid dual SIM (nano+nano/microSD)
12MP (UltraPixel 2) rear camera with dual-tone LED flash, 1.55um pixels, f/1.8 aperture, Laser AF, OIS, 4K video recording
16MP front-facing camera with f/2.0 aperture
HTC BoomSound, four omnidirectional noise cancelling microphones
Fingerprint sensor
Dimensions: 162.41 x 79.79 x 3.6-7.99mm; Weight: 161 grams
4G LTE, WiFi 802.11 ac (2.4 and 5GHz), Bluetooth 4.2 and GPS with GLONASS, NFC, USB 3.1 Type-C
3000mAh battery with Quick Charge 3.0


HTC U play

HTC U Play specifications

5.2-inch (1920 x 1080 pixels) Full HD Super LCD display with Corning Gorilla Glass protection
Octa-core MediaTek Helio P10 processor with up to Mali T860 GPU
3GB RAM with 32GB storage, 4GB RAM with 64GB internal storage, expandable memory up to 2TB with microSD
Android 6.0 (Marshmallow)
Hybrid dual SIM (nano+nano/microSD)
16MP rear camera with dual-tone LED flash, f/2.0 aperture, PDAF, OIS
16MP front-facing camera with f/2.0 aperture, 28mm lens, UltraPixel mode
Fingerprint sensor
HTC USonic, Dual microphones with noise cancelation
Dimensions: 145.99 x 72.9 x 3.5-7.99mm; Weight: 145 grams
4G LTE, WiFi 802.11 ac (2.4 and 5GHz), Bluetooth 4.2 and GPS with GLONASS, NFC, USB 2.0 Type-C
2500mAh battery with fast charging


Source http://www.phonereporters.com/2017/01/htc-u-play-5-2-inch-1080p-display-4gb-ram-released/