Category Breakdown
HTC U23
vivo iQOO Z9 (China)
Performance
87.589.3
Camera
62.753.3
Display
85.898.6
Battery
91.737.7
Build
0.20.2
Connectivity
85.984.1
Audio
8.987.6
Overall
66.266.3
Summary
- The HTC U23 features a 6.7-inch OLED display with a 120Hz refresh rate, while the vivo iQOO Z9 has a slightly larger 6.78-inch AMOLED display with a higher 144Hz refresh rate and HDR support.
- In terms of performance, the U23 is powered by the Snapdragon 7 Gen 1 chipset, whereas the Z9 utilizes the newer Snapdragon 7 Gen 3, offering improved processing capabilities.
- The U23's camera setup includes a 64 MP main sensor, while the Z9 has a 50 MP main sensor, both capable of 4K video recording but with the Z9 offering a slightly lower resolution.
- The U23 houses a 4600 mAh battery with wireless charging, compared to the Z9's larger 6000 mAh battery that supports faster wired charging but lacks wireless capabilities.
- Software-wise, the U23 runs on Android 13, while the Z9 comes with Android 14 and features stereo speakers, unlike the U23 which does not.
Side-by-side Specification Comparison
HTC U23
vivo iQOO Z9 (China)
General
Release Date
2023, July 17
2024, April 24
Announced
2023, July 17
2024, April 24
Description
N/A
N/A
Display
Size
6.7"
6.78"
Type
OLED, 120Hz
AMOLED, 1B colors, 144Hz, HDR, 4500 nits (peak)
Resolution
1080 x 2400 pixels, 20:9 ratio (~393 ppi density)
1260 x 2800 pixels, 20:9 ratio (~453 ppi density)
PPI
1080
1260
Refresh Rate
120Hz
144Hz
HDR Support
✗
✓
Protection
Corning Gorilla Glass Victus
N/A
Performance
Chipset
Qualcomm SM7450-AB Snapdragon 7 Gen 1 (4 nm)
Qualcomm SM7550-AB Snapdragon 7 Gen 3 (4 nm)
CPU
Octa-core (1x2.4 GHz Cortex-A710 & 3x2.36 GHz Cortex-A710 & 4x1.8 GHz Cortex-A510)
Octa-core (1x2.63 GHz Cortex-A715 & 4x2.4 GHz Cortex-A715 & 3x1.8 GHz Cortex-A510)
GPU
Adreno 644
Adreno 720
Memory
128GB 8GB RAM
128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM, 512GB 12GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC
No
Camera
Main Camera
64 MP, f/1.9, (wide), PDAF8 MP, f/2.4, 120˚ (ultrawide), 1/4.0", 1.12µm2 MP, f/2.4, (depth)
50 MP, f/1.8, (wide), 1/1.95", 0.8µm, PDAF2 MP, f/2.4, (depth)
Main Camera Features
Dual-LED flash, HDR, panorama
LED flash, panorama, HDR
Front Camera
32 MP, f/2.5, (wide), 1/2.8", 0.8µm
16 MP, f/2.5, (wide), 1/3.0", 1.0µm
Front Camera Features
HDR
N/A
Video Recording
4K@30fps, 1080p@30fps, gyro-EIS
4K@30fps, 1080p, gyro-EIS
Selfie Video
1080p@30fps
1080p@30fps
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
4600 mAh
6000 mAh
Battery Details
Li-Ion 4600 mAh
6000 mAh
Charging Details
30W wired15W wireless5W reverse wirelessReverse wired
80W wired7.5W reverse wired
Fast Charging
✗
✗
Wireless Charging
✓
✗
Build & Safety
Dimensions
166.6 x 77.1 x 8.9 mm (6.56 x 3.04 x 0.35 in)
163.7 x 75.9 x 8 mm (6.44 x 2.99 x 0.31 in)
Weight
202 g
194.6 g
Materials
N/A
N/A
Colors
Aqua Blue, Roland Violet
Black, White, Green
Foldable
✗
✗
SAR
N/A
N/A
Connectivity
SIM
Nano-SIM + Nano-SIM
Nano-SIM + Nano-SIM
Network
GSM / HSPA / LTE / 5G
GSM / CDMA / HSPA / LTE / 5G
Network Speed
HSPA, LTE, 5G
HSPA, LTE, 5G
5G
✓
✓
4G
✓
✓
WiFi
Wi-Fi 802.11 a/b/g/n/ac/6, dual-band
Wi-Fi 802.11 a/b/g/n/ac/6, dual-band
Bluetooth
5.2, A2DP, LE
5.4, A2DP, LE, aptX HD, aptX Adaptive, aptX Lossless
NFC
✓
✓
USB
USB Type-C 3.0
USB Type-C 2.0, OTG
IR Blaster
✗
✗
Headphone Jack
✓
✗
Radio
✗
✗
Positioning
GPS, GLONASS, GALILEO, BDS
GPS, GALILEO, GLONASS, QZSS, BDS (B1I+B1c)
Audio
Stereo Speakers
✗
✓
Loudspeaker
Yes
Yes, with stereo speakers
Audio Jack
Yes
No
Software & Security
Operating System
Android 13
Android 14, OriginOS 4
Fingerprint
✓
✓
Face Unlock
✗
✗
Sensors
Fingerprint (side-mounted), accelerometer, gyro, proximity, compass
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass

