HTC U Ultra vs. HTC U12+: Which Flagship Reigns Supreme?

The HTC U Ultra and U12+ represent distinct points in HTC’s flagship evolution. The U Ultra, released earlier, focused on a unique secondary display and strong battery life. The U12+, arriving later, aimed to deliver a more refined experience with a cutting-edge processor and improved camera system. This comparison dissects the core differences to determine which device offers the best value today.
Phones Images

🏆 Quick Verdict

For most users, the HTC U12+ is the superior choice. While it sacrifices some battery endurance, the significantly faster Snapdragon 845 chipset delivers a noticeably smoother and more responsive experience, making it better suited for demanding tasks and future-proofing. The U Ultra remains viable for battery-focused users.

PHONES
Phone Names HTC U Ultra HTC U12+
Network
2G bandsGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)
3G bandsHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 38, 39, 40, 411, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 28, 32, 38, 39, 49, 41, 66
SpeedHSPA 42.2/5.76 Mbps, LTE (3CA) Cat11 600/50 MbpsHSPA 42.2/5.76 Mbps, LTE-A (5CA) Cat18 1200/150 Mbps
TechnologyGSM / HSPA / LTEGSM / HSPA / LTE
Launch
Announced2017, January 12. Released 2017, February 212018, May 23
StatusDiscontinuedAvailable. Released 2018, June 29
Body
BuildGlass front (Gorilla Glass 5 or Sapphire crystal), glass back, aluminum frameGlass front (Gorilla Glass 3), glass back, aluminum frame
Dimensions162.4 x 79.8 x 8 mm (6.39 x 3.14 x 0.31 in)156.6 x 73.9 x 8.7 mm (6.17 x 2.91 x 0.34 in)
SIMNano-SIM + Nano-SIMSingle SIM (Nano-SIM) or Hybrid Dual SIM (Nano-SIM, dual stand-by)
Weight170 g (6.00 oz)188 g (6.63 oz)
 -IP68 dust/water resistant (up to 1.5m for 30 mins) Pressure-sensitive buttons
Display
ProtectionCorning Gorilla Glass 5 (64 GB version)Sapphire crystal glass (128 GB version)Corning Gorilla Glass 3
Resolution1440 x 2560 pixels, 16:9 ratio (~513 ppi density)1440 x 2880 pixels, 18:9 ratio (~537 ppi density)
Size5.7 inches, 90.3 cm2 (~69.7% screen-to-body ratio)6.0 inches, 92.9 cm2 (~80.3% screen-to-body ratio)
TypeSuper LCD5Super LCD6, HDR10
 Secondary display, 160 x 1040 pixels, 2 inches-
Platform
CPUQuad-core (2x2.15 GHz Kryo & 2x1.6 GHz Kryo)Octa-core (4x2.8 GHz Kryo 385 Gold & 4x1.7 GHz Kryo 385 Silver)
ChipsetQualcomm MSM8996 Snapdragon 821 (14 nm)Qualcomm SDM845 Snapdragon 845 (10 nm)
GPUAdreno 530Adreno 630
OSAndroid 7.0 (Nougat), upgradable to Android 8.0 (Oreo)Android 8.0 (Oreo), upgradable to Android 9.0 (Pie), Sense UI
Memory
Card slotmicroSDXC (uses shared SIM slot)microSDXC (uses shared SIM slot)
Internal64GB 4GB RAM, 128GB 4GB RAM64GB 6GB RAM, 128GB 6GB RAM
Main Camera
Dual-12 MP, f/1.8, 1/2.55", 1.4µm, dual pixel PDAF, Laser AF, OIS 16 MP (12 MP effective), f/2.6, 1/3.1", 1.0µm, 2x optical zoom, AF
FeaturesLaser AF, Dual-LED dual-tone flash, panoramaDual-LED dual-tone flash, HDR
Single12 MP, f/1.8, 26mm (wide), 1/2.3", 1.55µm, PDAF, OIS-
Video4K@30fps (24-bit/192kHz audio), 720p@120fps4K@60fps, 1080p@60/240fps, 1080p@30fps (gyro-EIS), HDR, 24-bit/96kHz stereo sound rec.
Selfie camera
Dual-8 MP, f/2.0, 1/4", 1.12µm 8 MP, f/2.0, 1/4", 1.12µm
FeaturesHDRHDR, panorama
Single16 MP, f/2.0, 27mm (wide), 1/3.06", 1.0µm-
Video1080p@30fps1080p@30fps
Sound
3.5mm jack NoNo
35mm jackNo-
Loudspeaker YesYes, with stereo speakers
 24-bit/192kHz audio 32-bit/384kHz audio
Comms
Bluetooth4.2, A2DP, LE5.0, A2DP, aptX HD, LE
NFCYesYes
PositioningGPS, GLONASS, BDSGPS, GLONASS, GALILEO, BDS
RadioNoNo
USBUSB Type-C 3.1USB Type-C 3.1
WLANWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNAWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA
Features
SensorsFingerprint (front-mounted), accelerometer, gyro, proximity, compassFingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Battery
Charging18W wired, QC318W wired, QC3, 50% in 35 min (advertised)
Stand-byUp to 312 h (3G)-
Talk timeUp to 26 h (3G)Up to 24 h (3G)
TypeLi-Ion 3000 mAh, non-removableLi-Ion 3500 mAh, non-removable
Misc
ColorsBrilliant Black, Cosmetic Pink, Ice White, Sapphire BlueTranslucent Blue, Ceramic Black, Flame Red
ModelsU Ultra, U-1u, 2PZF1U12, 2Q55100
PriceAbout 250 EURAbout 450 EUR
Tests
Audio quality- Noise -93.7dB / Crosstalk -52.7dB
Battery lifeEndurance rating 81h Endurance rating 64h
Camera Photo / Video Photo / Video
Display Contrast ratio: 1831 (nominal), 3.453 (sunlight) Contrast ratio: 1818:1 (nominal), 3.085 (sunlight)
Loudspeaker Voice 61dB / Noise 73dB / Ring 86dB Voice 77dB / Noise 73dB / Ring 99dB
Performance GFXBench: 10fps (ES 3.1 onscreen) AnTuTu: 263696 (v7) GeekBench: 9001 (v4.4) GFXBench: 20fps (ES 3.1 onscreen)

HTC U Ultra

  • Exceptional battery life (81h endurance)
  • Slightly higher nominal display contrast
  • Unique secondary display functionality

  • Older Snapdragon 821 processor
  • Less powerful GPU for gaming
  • Potentially slower camera performance

HTC U12+

  • Significantly faster Snapdragon 845 processor
  • Improved GPU performance for gaming
  • Faster charging capabilities (50% in 35 min)
  • More immersive, nearly bezel-less display

  • Lower battery endurance (64h)
  • Slightly lower nominal display contrast
  • Potentially higher price (depending on current market)

Display Comparison

Both the U Ultra and U12+ feature displays with excellent contrast ratios, with the U Ultra achieving 1831:1 (nominal) and 3.453 (sunlight) compared to the U12+'s 1818:1 and 3.085 (sunlight). While the U Ultra boasts slightly higher contrast in nominal conditions, the difference is unlikely to be perceptible to most users. Both phones lack high refresh rate panels, a common feature in modern flagships. The U12+’s design incorporates a nearly bezel-less display, offering a more immersive viewing experience, though the U Ultra’s secondary display offered a unique, if niche, functionality.

Camera Comparison

Both devices are listed as having Photo/Video capabilities, but detailed sensor information is missing. However, given the U12+'s positioning as a flagship, it likely features a more advanced camera system with a larger sensor and improved image processing. The U12+ benefits from the Snapdragon 845’s enhanced image signal processor (ISP), enabling faster image capture and improved low-light performance. The U Ultra, while capable, would likely struggle to match the U12+'s image quality in challenging conditions. The absence of detailed camera specs prevents a more granular comparison.

Performance

The performance gap between the U Ultra and U12+ is substantial. The U Ultra’s Snapdragon 821, built on a 14nm process, features a quad-core CPU. The U12+, however, utilizes the Snapdragon 845, fabricated on a more efficient 10nm process, and boasts an octa-core CPU. This translates to a significant performance uplift in the U12+, particularly in demanding applications and games. The 845’s Kryo 385 cores, with peak speeds of 2.8 GHz, offer a considerable advantage over the 821’s 2.15 GHz Kryo cores. While both phones likely feature similar RAM configurations, the 845’s improved memory controller contributes to faster overall system responsiveness.

Battery Life

The HTC U Ultra holds a clear advantage in endurance, boasting an 81-hour rating. The U12+, despite featuring Quick Charge 3.0 and an advertised 50% charge in 35 minutes, has a lower endurance rating of 64 hours. This suggests that the more powerful Snapdragon 845 consumes more power, offsetting any gains from the more efficient 10nm process. Users prioritizing all-day battery life will likely prefer the U Ultra, while those willing to trade some endurance for performance may opt for the U12+.

Buying Guide

Buy the HTC U Ultra if you prioritize exceptional battery life and are comfortable with a slightly older processor. It’s ideal for users who primarily browse, communicate, and consume media. Buy the HTC U12+ if you demand the best possible performance for gaming, multitasking, and camera-intensive applications. It’s the better option for power users and those who want a phone that will remain responsive for years to come.

Frequently Asked Questions

❓ Will the Snapdragon 821 in the U Ultra struggle with demanding games like Genshin Impact?
Yes, the Snapdragon 821 will likely struggle with graphically intensive games like Genshin Impact, even at lower settings. The U12+'s Snapdragon 845 offers a significantly better gaming experience, allowing for higher frame rates and more detailed graphics.
❓ Does the U12+ experience thermal throttling during prolonged gaming sessions?
While the Snapdragon 845 is more efficient than the 821, it can still experience some thermal throttling during extended gaming sessions. However, the U12+'s larger chassis and improved thermal management likely mitigate this issue compared to other phones with the same chipset.
❓ Is the secondary display on the U Ultra still useful in 2024?
The secondary display on the U Ultra is a niche feature. While it can display notifications and quick shortcuts, its functionality is limited compared to modern always-on displays. Its usefulness depends on individual preferences and whether you find it convenient.
❓ How does the charging speed of the U12+ compare to modern fast charging standards?
The U12+'s 18W Quick Charge 3.0 charging is relatively slow compared to modern fast charging standards like USB Power Delivery (USB-PD) which can deliver 65W or more. While it can reach 50% charge in 35 minutes, it will take considerably longer to fully charge the device.