OnePlus Ace 2vsvivo iQOO Z9

We compare these two popular phones to help you decide which one fits your needs and budget better.

OnePlus
OnePlus Ace 2
Ace 2
Processor:Qualcomm Snapdragon 8+ Gen1 3.0GHz
RAM:8GB
Storage:128GB

Quick Stats

The OnePlus Ace 2 offers decent battery life, matching its flagship counterpart, despite being more affordable.
The OnePlus Ace 2's display boasts improved specifications, including higher refresh rates and faster touch sampling rates consistently.
The OnePlus Ace 2's camera performance is decent but not outstanding compared to other flagships on the market overall.
The OnePlus Ace 2's performance is merely average, hindered by a subpar cooling system and temperature concerns always.
vivo
vivo iQOO Z9
iQOO Z9
Processor:Qualcomm Snapdragon 7 Gen 3 (SM7550-AB)
RAM:8GB
Storage:256GB

Quick Stats

The iQOO Z9 Turbo boasts an impressive 6,000mAh battery with exceptional power efficiency and rapid charging capabilities.
The iQOO Z9 Turbo boasts an impressive display with vibrant visuals, ideal for gaming and video watching.
The Vivo iQOO Z9's camera capabilities offer exceptional image quality and video recording features overall.
The Vivo iQOO Z9 Turbo delivers exceptional performance with a powerful processor and seamless user experience guaranteed always.
Key Differences

Processor Speed

Winner
OnePlus Ace 2
3 GHz
vivo iQOO Z9
2.63 GHz

RAM

Tie
OnePlus Ace 2
8GB
vivo iQOO Z9
8GB

Storage

Winner
OnePlus Ace 2
128GB
vivo iQOO Z9
256GB

Weight

Winner
OnePlus Ace 2
204g
vivo iQOO Z9
195g
Rank
OnePlus Ace 2
Winner
#108
vivo iQOO Z9
#374
Scores by Category
Rankings
Connectivity
OnePlus Ace 2
#165
Winner
vivo iQOO Z9
#535
Design
OnePlus Ace 2
#247
Winner
vivo iQOO Z9
#505
Display
OnePlus Ace 2
#47
vivo iQOO Z9
#39
Winner
Performance
OnePlus Ace 2
#126
Winner
vivo iQOO Z9
#288
Battery
OnePlus Ace 2
#60
Winner
vivo iQOO Z9
#157
Camera
OnePlus Ace 2
#349
Winner
vivo iQOO Z9
#676
item_phones_categoryId
OnePlus Ace 2
#1
Tie
vivo iQOO Z9
#1
Tie

Note: Lower rank number indicates a better position in category.

Specifications Comparison
Specification
OnePlus OnePlus Ace 2
vivo vivo iQOO Z9
Model
Qualcomm Snapdragon 8+ Gen1 3.0GHz
Qualcomm Snapdragon 7 Gen 3 (SM7550-AB)
CPU
1x3.0 GHz Cortex, X2 +3x2.5 GHz Cortex, A710 + 4x1.8 GHz Cortex, A510
1x2.63 GHz Cortex, A715 +3x2.4 GHz Cortex, A715 + 4x1.8 GHz Cortex, A510
Type
Octa-Core
Octa-Core
Nanometer
4
4
Frequency
3
2.63
64 Bits
Yes
Yes
GPU
Qualcomm Adreno 730
Qualcomm Adreno 720
RAM
8
8
Type
RAM LPDDR5X
N/A
Capacity
128
256
Type
UFS Storage 3.1
UFS Storage 2.2
SD slot
No
No
Fingerprint security
Yes, in screen
Yes, in screen
Fingerprint sensor
Yes
Yes
Proximity sensor
Yes
Yes
Light sensor
Yes
Yes
Accelerometer sensor
Yes
Yes
Compass sensor
Yes
Yes
Gyroscope sensor
Yes
Yes
Gravity sensor
Yes
Yes
Audio
Dolby Atmos, Noise cancellation microphone, Stereo Speakers
Stereo Speakers
Antutu Score
1343244
866863
Antutu Version
Antutu v10
Antutu v10
Antutu Standing
Overall performance better than 92% of devices
Overall performance better than 85% of devices
Cooling system
Yes
Yes
Gaming buttons
No
No
Extras
5177mm² eight-channel through VC + 6355.32mm² phase-change graphene
6043mm² canopy VC liquid coolin

Note: Highlighted specifications show differences between the two devices.

Pros and Cons

OnePlus Ace 2

Strengths

The design of the phone is nice and similar to the OnePlus 11, with a blue color option that looks good.
The camera system is impressive, especially the main camera which takes great photos even with a 2x crop.
The display is better than the OnePlus 11's, with higher refresh rates and faster touch sampling rates.
The phone has a nice performance, using a strong Snapdragon A+ Gen1 processor that handles games smoothly.
The battery life is average but not bad, similar to the OnePlus 11.
The price of the phone is very cheap, especially considering the features it offers.
The camera can record video up to 4K at 60fps, which is a nice feature.

Weaknesses

The gaming performance is only average and can get locked at 30 FPS for a while when playing games for more than 20 minutes.
The cooling system is not as good as expected, leading to high temperatures during intense gaming sessions.
The phone's charging speed has taken a step back compared to the OnePlus 11, with a full charge taking around 25 minutes.
The ultra-wide camera has lower clarity and noise control compared to the main camera.
The phone does not support AK video recording like some other phones in its class.
The display is not as friendly to the eyes as some other phones, especially at lower brightness levels.
The phone's design is not particularly impressive or innovative.

vivo iQOO Z9

Strengths

The vivo iQOO Z9 features a Cutting Edge 4nm process for Superior efficiency and performance
A dedicated graphic chip turbo enhances gaming performance and immersion
The device has an impressive 89.2% screen-to-body ratio, providing a captivating visual experience
The display boasts a peak brightness of 4,500 nits, HDR support, and a wide color gamut of 1 billion colors
The device is powered by a robust 6,000mAh battery with rapid 80W fast charging
The iQOO Z9 features a versatile camera setup with a 16MP selfie snapper and a dual-camera setup at the rear
The device runs on Origin OS 4.0 based on Android 14, offering a refined and customizable user experience

Weaknesses

No mention of global availability or pricing outside of China
The device's design is only described as sleek and contemporary, with no specific details about build quality or durability
There are no reviews or comparisons to other devices in the same price segment
The camera settings and features are not fully explored in the review
No mention of software updates or security patches for the device
The iQOO Z9's performance is only benchmarked by a score, with no detailed analysis of its capabilities
The review does not compare the device to other smartphones in terms of value for money
Read Full Reviews

OnePlus Ace 2

The OnePlus Ace 2 presents itself as a worthy successor to the OnePlus 11, with an impressive sub-flagship price tag of just $401 in China. This device is essentially the global version of the H2, boasting identical specs except for different RAM and ROM capacities. With its new design and upgraded performance, the Ace 2 appears poised to reclaim its status as a flagship killer. But does it live up to expectations?

vivo iQOO Z9

The Vivo iQOO Z9 Turbo is a mid-range smartphone that packs a punch with its Qualcomm Snapdragon H Gen 3 processor, built on a 4nm process for superior efficiency and performance. This device stands out for its affordability and features a dedicated graphics chip, ensuring precise color reproduction and optimal viewing experience. With a sleek design, immersive sound quality, and a high-quality AMOLED display, this phone promises to deliver vibrant visuals and seamless multitasking.

Need help choosing?

Read our detailed reviews to understand which device is better for your specific needs and budget.

Compare other phones

Explore comparisons between any other phones

Compare phones
VS

Choose two different items to see a detailed comparison of their specifications, performance, and features