Instant Pot Duo 7-in-1 vs Ninja Foodi 9-in-1 OP350UK: Which Should You Buy? (UK 2026)
🍲 Products Compared
📊 Specs Comparison
| Feature | Instant Pot Duo 7-in-1 5.7L | Ninja Foodi 9-in-1 OP350UK 6L |
|---|---|---|
| Price | $78.62 | $189.99 |
| Rating | 4.7/5 | 4.5/5 |
| Number of Functions | 7 (Pressure Cook, Slow Cook, Rice, Sauté, Yoghurt, Steam, Warm) | 9 (Pressure Cook, Air Fry, Slow Cook, Grill, Bake/Roast, Steam, Sauté, Yoghurt, Warm) |
| Key Feature 1 | 13 one-touch smart programmes | Dedicated crisping air fryer lid |
| Key Feature 2 | Yoghurt maker included | Grill and bake/roast modes |
| Wattage/Power | 1000W | 1460W |
| Capacity | 5.7L (serves 4–6) | 6L (serves 4–6) |
| Warranty | 1 year | 1 year (2 years when registered) |
* Instant Pot Duo 7-in-1 Electric Multi-Cooker 5.7L
- * Outstanding value at $78.62, one of the most affordable multi-cookers available in the UK
- * Higher customer rating (4.7/5) than the Ninja despite costing less than half the price
- * Lightweight and compact, much easier to store in typical UK kitchen cupboards
- * 13 smart programmes cover everything from bone broth to yoghurt with minimal guesswork
- ❌ No air fryer or crisping function, cannot brown, crisp, or grill food
- ❌ Lower 1000W output means slightly longer pressure build-up times compared to the Ninja
* Ninja Foodi 9-in-1 Multi Cooker OP350UK 6L
- * Unique air fryer crisping lid lets you pressure cook then crisp in one pot, no second appliance needed
- * Higher 1460W power delivers faster heat-up and pressure build times
- * Slightly larger 6L capacity gives extra room for big batch cooks or whole joints
- * Grill and bake/roast modes add genuine oven-like versatility beyond the Instant Pot's range
- ❌ At $189.99 it costs $111 more than the Instant Pot, a hard-to-justify premium if you rarely air fry
- ❌ Heavy (11–13 kg) and bulky dimensions (32 × 43 × 36 cm) make it impractical for smaller UK kitchens
📝 User Reviews
Amazon UK buyers consistently praise the Instant Pot Duo as a 'life-changing' purchase for batch cooking and weeknight stews, highlighting its simplicity and reliability over years of use. Ninja Foodi reviewers love the air fryer lid and describe it as replacing three appliances at once, though a recurring complaint is that it is heavier and takes up far more worktop space than expected.
🏆 Verdict
For the vast majority of UK cooks, the Instant Pot Duo 7-in-1 at $78.62 is the clear winner, it scores higher with reviewers, handles all the core pressure and slow-cooking tasks brilliantly, and leaves over $100 in your pocket. The Ninja Foodi OP350UK is worth the premium only if you genuinely want a built-in air fryer and have the counter space and budget to match, since that crisping lid is a feature the Instant Pot simply cannot replicate.
Instant Pot Duo 7-in-1 best for budget-conscious households, first-time multi-cooker buyers, and anyone who wants reliable pressure cooking and slow cooking in a compact, lightweight unit. Ninja Foodi 9-in-1 OP350UK best for families who want to consolidate a pressure cooker, slow cooker, and air fryer into one appliance and don't mind the higher price and larger footprint.
❓ FAQs
Can the Instant Pot Duo air fry?
No, the Instant Pot Duo 7-in-1 has no air fryer function. If crisping and browning food is important to you, the Ninja Foodi OP350UK is the only option here with a dedicated air fryer crisping lid.
Is the Ninja Foodi OP350UK worth the extra $111?
Only if the air fryer function will get regular use. For pressure cooking and slow cooking performance alone, the Instant Pot Duo achieves a higher rating at a fraction of the cost, the premium is entirely for the air fryer lid.
Which is better for a UK family of four?
Both handle four servings comfortably, the Instant Pot at 5.7L and the Ninja at 6L are virtually identical in practical capacity. The Instant Pot is the better all-round family buy on value; choose the Ninja if your family also snacks on air-fried chips and wings.