With the ever-evolving smartphone market, the Infinix Zero 40 5G and the Nothing Phone 3a have become two of the most exciting mid-range options in 2025. As someone who has personally tested both devices, I’ll break down their differences, helping you decide which one suits your needs best.
Design & Build Quality
Infinix Zero 40 5G
- Sleek and lightweight (195g)
- Available in Violet Garden, Rock Black, and Moving Titanium
- Premium design with an IR blaster
- Curved AMOLED display for an immersive experience
Nothing Phone 3a
- Unique transparent design in Black & White
- Glyph Interface adds an aesthetic touch
- Heavier than the Infinix Zero 40 5G
- Better protection with Gorilla Glass Victus
💡 Verdict: The Nothing Phone 3a offers a unique design with better durability, but the Infinix Zero 40 5G has a more premium curved display.
Display & Refresh Rate
📱 Infinix Zero 40 5G:
- 6.78-inch AMOLED display (1080 × 2400 pixels)
- 144Hz refresh rate for ultra-smooth scrolling
📱 Nothing Phone 3a:
- 6.8-inch AMOLED display (1084 × 2728 pixels)
- 120Hz refresh rate with 1800 nits peak brightness
💡 Verdict: If you want a higher refresh rate and a curved display, the Infinix Zero 40 5G is a better pick. However, the Nothing Phone 3a’s display is sharper with higher peak brightness.
Performance & Software
⚙️ Infinix Zero 40 5G:
- Mediatek Dimensity 8200 Ultimate
- 3.1 GHz Octa-core processor
- 12GB RAM & 256GB storage (UFS 3.1)
⚙️ Nothing Phone 3a:
- Qualcomm Snapdragon 7+ Gen 3
- 2.8 GHz Octa-core processor
- 8GB RAM & 128GB storage (UFS 2.2)
💡 Verdict: The Infinix Zero 40 5G offers more RAM and faster storage, making it better for gaming and multitasking. However, the Nothing Phone 3a is expected to be better optimized with Android 15.
Cameras
📸 Rear Cameras
- Infinix Zero 40 5G: 108MP + 50MP (Ultra-Wide) + 2MP (Depth)
- Nothing Phone 3a: 50MP (Wide) + 50MP (Ultra-Wide) + 50MP (Telephoto)
🤳 Front Camera
- Infinix Zero 40 5G: 50MP
- Nothing Phone 3a: 32MP
💡 Verdict: The Infinix Zero 40 5G’s 108MP sensor is great for photography, while the Nothing Phone 3a has a versatile triple 50MP setup with a telephoto lens. If you love selfies, Infinix wins with a 50MP front camera.
Battery & Charging
🔋 Infinix Zero 40 5G:
- 5000mAh battery
- 45W fast charging
- 20W wireless charging
🔋 Nothing Phone 3a:
- 5000mAh battery
- 65W fast charging
- 5W reverse charging
💡 Verdict: The Nothing Phone 3a charges faster (65W vs 45W), but the Infinix Zero 40 5G supports wireless charging.
Software & Updates
- Infinix Zero 40 5G runs on Android 14 (XOS 14.5)
- Nothing Phone 3a comes with Android 15 (Nothing OS 2.5)
- Nothing guarantees 3 years of Android updates
💡 Verdict: If you prioritize long-term software support, Nothing Phone 3a is the better option.
Price & Value for Money
💰 Infinix Zero 40 5G: ₹24,999
💰 Nothing Phone 3a: ₹27,999
💡 Verdict: If you’re looking for a powerful device under ₹25,000, the Infinix Zero 40 5G is a steal. However, if you prefer better software updates and an optimized experience, the Nothing Phone 3a is worth the extra ₹3,000.
Final Verdict: Which One Should You Buy?
| Feature | Infinix Zero 40 5G | Nothing Phone 3a |
|---|---|---|
| Design | Curved AMOLED, IR Blaster | Transparent design, Glyph lights |
| Display | 144Hz, Curved | 120Hz, Brighter |
| Performance | Mediatek Dimensity 8200, 12GB RAM | Snapdragon 7+ Gen3, 8GB RAM |
| Camera | 108MP + 50MP, 50MP front | 50MP + 50MP + 50MP |
| Battery | 5000mAh, 45W Charging | 5000mAh, 65W Charging |
| Software | Android 14 | Android 15, 3 Years Updates |
| Price | ₹24,999 | ₹27,999 |
Buy Infinix Zero 40 5G if:
✅ You want a high refresh rate curved AMOLED display
✅ You need a 108MP camera & better selfies
✅ You prefer wireless charging
Buy Nothing Phone 3a if:
✅ You want longer software support
✅ You prefer a unique design & Glyph Interface
✅ You need faster charging & optimized Android 15