BOSWELL Glass Air Fryer, 7.5QT with Transparent Fry Bowl, Circulating Heating, Temperature Control, Air Fryer Roast, Dishwasher Safe vs Ninja Crispi 5-in-1 Portable Glass Air Fryer Cooking System, 1500W, 6-Cup, 4-Quart & 2.5-Quart TempWare Containers With Lids, Microwave, Freezer & Dishwasher Safe, Blue, FN103CO

Price Comparison

The Ninja Crispi is about 6% cheaper than the BOSWELL Glass Air Fryer, priced at $119.95 versus $127.92. This price difference of $7.97 makes the Ninja a more budget-friendly option without sacrificing core functionality. While both models are competitively priced within the mid-tier air fryer market, the Ninja’s lower current cost offers immediate savings for buyers seeking value. The BOSWELL’s higher price may reflect its larger 7.5-quart capacity and dedicated glass bowl design, but the Ninja delivers comparable performance in a compact, multi-container system.

Capacity and Container Flexibility

The BOSWELL Glass Air Fryer features a single 7.5-quart transparent fry bowl, ideal for large batches like a whole chicken or family-sized fries. In contrast, the Ninja Crispi system includes three separate containers—6-cup, 4-quart, and 2.5-quart—allowing users to tailor portion sizes precisely. This flexibility supports everything from single servings to full meals, making it better suited for households with varied meal needs. The BOSWELL’s fixed bowl limits versatility, while the Ninja’s modular approach enables cooking multiple dishes simultaneously or storing leftovers safely across different container sizes.

Cooking Functionality and Features

The BOSWELL offers five one-touch presets—seafood, fries, steak, chicken, and bake—plus manual mode with up to 60 minutes of cooking time and a maximum temperature of 400°F. It emphasizes precision through real-time monitoring via its transparent glass body. The Ninja Crispi, meanwhile, provides five distinct functions: Recrisp, Bake, Air Fry, Max Crisp, and Keep Warm. These modes cater to specific outcomes like reheating crispy foods or maintaining warmth post-cooking. While both offer preset convenience, the Ninja’s function set is more specialized for modern kitchen workflows, particularly for quick re-crisping and meal preservation.

Design and Portability

The Ninja Crispi stands out as a truly portable system, designed to be easily stored and transported. Its PowerPod base nests neatly with all three TempWare containers and lids, creating a compact unit that fits efficiently in cabinets. The BOSWELL, though also compact, lacks this nesting feature and relies on a single large bowl, which takes up more space when stored. Additionally, the Ninja’s permanently fixed heat-safe feet allow safe placement on sensitive surfaces like granite or marble, enhancing safety during use. The BOSWELL does not mention surface compatibility, suggesting it may require a trivet or mat.

Ease of Cleaning and Maintenance

Both products feature dishwasher-safe components, but the Ninja Crispi’s advantage lies in its comprehensive clean-up system: all containers, crisper plates, adapter, and lids are dishwasher safe. The BOSWELL’s glass inner pot is dishwasher safe, along with included silicone mats and insulated gloves, but no mention is made of the outer housing or heating elements being washable. The Ninja’s modular design simplifies cleaning by allowing individual parts to be washed separately, reducing cross-contamination risk and improving hygiene.

Material Safety and Durability

Both air fryers use non-toxic materials in their cooking components. The BOSWELL highlights a non-toxic coating on its glass bowl, while the Ninja explicitly states that its CleanCrisp TempWare containers are nontoxic and safe for cooking and storage. Both systems include microwave- and freezer-safe containers, but only the Ninja specifies that its containers are suitable for all three: microwave, freezer, and dishwasher. This triple-use capability adds long-term utility, especially for meal prep and storage.

Performance and Heating Efficiency

The BOSWELL boasts an 1800W heating element, which preheats faster than conventional ovens and ensures even cooking through 360° hot air circulation. The Ninja Crispi operates at 1500W, slightly less powerful, but still capable of delivering fast results—its 6-cup container cooks single meals in just 7 minutes. While the BOSWELL’s higher wattage suggests quicker heating, the Ninja compensates with efficient airflow and precise temperature control across its multiple functions. Both systems prioritize rapid, even cooking, though the BOSWELL’s higher power may give it a slight edge in speed for larger batches.

Which should you buy?

Choose the Ninja Crispi if you want a versatile, portable, and space-efficient system with multiple container sizes, dishwasher-safe components, and built-in portability—all at $119.95, about 6% less than the BOSWELL. Its 5-in-1 functionality and nesting design make it ideal for small kitchens, meal preppers, or those who value flexibility. Opt for the BOSWELL Glass Air Fryer only if you prioritize a single large-capacity bowl (7.5 quarts) for bigger meals and prefer a transparent design for real-time food monitoring. However, given the Ninja’s lower price, greater modularity, and superior storage efficiency, it offers better overall value despite slightly lower wattage.