iQOO Z9s 5G Review 2025 – Best 5G Phone Under ₹20,000? Camera, Performance & Battery Test

The iQOO Z9s 5G, launched in India in late 2025, is a performance-focused mid-range smartphone that aims to deliver flagship-level durability and long-term usability. Priced between ₹18,999 and ₹21,990, it targets gamers, content creators, and students seeking premium features without a premium price tag.

Powered by the MediaTek Dimensity 7300 5G (4nm) processor, it packs a 120Hz 3D Curved AMOLED display, a 50MP Sony OIS camera, and a 5500mAh battery with 44W FlashCharge. iQOO claims a 4-year battery health and a 50-month smooth experience, making it one of the most longevity-oriented phones in its class.

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Design & Build Quality

The iQOO Z9s 5G impresses with a 0.749 cm ultra-slim design and premium aesthetics. It weighs around 180g, making it both slim and lightweight for its segment.

• Material: High-strength SCHOTT Xensation® glass on the front

• Frame & Back Finish:

  • Onyx Green – glossy marble-inspired finish

  • Titanium Matte – smooth, matte texture for a refined look

• In-hand Feel: Premium, curved edges provide a secure grip

• Ports & Buttons: Standard USB Type-C port, dual speakers, and power + volume buttons on the right side

• Durability: Certified IP64 Dust and Water Resistance with Wet Touch Technology, allowing touch input even when wet

The overall craftsmanship reflects a strong emphasis on premium ergonomics and real-world durability, rare at this price point.

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Display

The Z9s 5G features a 6.77-inch 3D Curved AMOLED display that elevates its visual appeal.

• Resolution: Full HD+

• Refresh Rate: 120Hz adaptive refresh

• Brightness: Peak brightness up to 1800 nits

• Color Gamut: 100% P3 color accuracy, 1.07 billion colors

• Contrast Ratio: 8,000,000:1

• Touch Sampling Rate: 2000Hz Instant Touch for ultra-fast response

• Eye Comfort: 2160Hz PWM Dimming minimizes flicker and eye strain

• Protection: SCHOTT Xensation® glass

The display is undoubtedly one of the best in its category—vivid, fluid, and optimized for gaming and multimedia.

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Performance

At its core, the MediaTek Dimensity 7300 5G (4nm) ensures efficient power consumption with flagship-like smoothness.

• Processor: Octa-core Dimensity 7300 5G

• GPU: Mali-G615 MC2

• RAM & Storage:

  • 8GB + 128GB

  • 12GB + 256GB (with 12GB Extended RAM support)

• Benchmark Score: ~700,000+ (AnTuTu on 12GB variant)

Gaming Test

• BGMI / COD Mobile: Smooth+Ultra settings run flawlessly with minimal frame drops

• Genshin Impact: Stable at medium settings, no thermal throttling detected

• Thermal Management: The 4nm process and optimized cooling ensure sustained performance

The Ultra Game Mode, 4D Game Vibration, and Motion Control deliver an immersive experience, making it ideal for mobile gamers.

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Camera Review

Camera Performance

• Daylight: Excellent color reproduction and dynamic range; OIS ensures sharp images.

• Low-Light: Aura Light aids in noise reduction and detail retention.

• Portraits: Accurate edge detection with natural background blur.

• Videos: 4K recording is stable; OIS compensates well for hand movements.

• Selfies: 16MP front camera produces crisp, social-media-ready shots.

The focus on sensor quality over multiple lenses pays off—this is one of the most capable camera setups under ₹20K.

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Battery & Charging

• Battery Capacity: 5500mAh single-cell design

• Charging Speed: 44W FlashCharge

• Battery Health Claim: 80% capacity retention after 4 years (~1460 cycles)

• Reverse Charging: 7.5W supported

Real-World Usage

• Screen-on Time (SOT): 7–8 hours under mixed use

• Charging Time: 0–100% in about 65 minutes

• Super Battery Saver: Offers up to 27 minutes of calling at 1% battery

The 44W charger prioritizes battery longevity over sheer speed—a smart move for durability-focused buyers.

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Software & UI

• Operating System: Android 14 (Funtouch OS 14)

• Features: Split Screen, Mini Window, AI Erase, AI Photo Enhance

• Bloatware: Minimal, most can be uninstalled

• Update Policy: Expected 2 major Android updates + 3 years security patches

Funtouch OS 14 feels clean and responsive, with useful AI utilities enhancing everyday tasks.

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Connectivity & Extra Features

• 5G Bands: Comprehensive Indian 5G band support

• Wi-Fi / Bluetooth: Dual-band Wi-Fi, Bluetooth 5.3

• NFC: Not supported

• GPS: Fast and accurate tracking

• Speakers: Dual stereo speakers with Hi-Res Audio certification (300% loudness mode)

• Fingerprint Sensor: In-display optical sensor

• Extras: Face Unlock, App Retainer, and robust vibration feedback

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Price in India & Variants

Availability: Available on iQOO E-Store and Flipkart, with EMI, cashback, and student offers.

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Pros & Cons

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Comparison with Rivals

Summary:
The iQOO Z9s 5G outperforms rivals in display quality, battery endurance, and long-term stability. While Realme offers faster charging, iQOO wins in screen technology and durability.

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Final Verdict

The iQOO Z9s 5G is a future-proof mid-ranger designed for users who value longevity, performance, and display quality over short-lived specs.

Buy it if you:

• Want a premium curved AMOLED display

• Need reliable performance for gaming or multitasking

• Prefer a phone with 4-year endurance claims

Skip it if you:

• Need an ultra-wide camera

• Want faster than 44W charging

Value for Money Score: 9/10
For ₹18,999, the iQOO Z9s 5G sets a new benchmark for durability and design in its segment.

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FAQs

1. Is iQOO Z9s 5G good for gaming?
Yes, the Dimensity 7300 5G with Ultra Game Mode delivers smooth BGMI and COD gameplay.

2. How many 5G bands does it support?
It supports multiple Indian 5G bands for complete nationwide compatibility.

3. Does it support 4K video recording?
Yes, the 50MP Sony IMX882 sensor supports 4K recording with OIS.

4. How is the camera in low light?
The Aura Light system and OIS ensure bright, noise-free low-light images.

5. Is iQOO Z9s 5G good for long-term use?
Absolutely. iQOO claims 50-month smoothness and 4-year battery health.

6. Does it support expandable storage?
Yes, hybrid SIM slot supports microSD expansion.

7. Is it waterproof?
It’s IP64 water and dust resistant, but water damage isn’t covered under warranty.

8. Does it have stereo speakers?
Yes, dual stereo speakers with Hi-Res Audio certification and 300% loudness.

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