BOSWELL Glass Air Fryer, 7.5QT with Transparent vs Ninja Crispi 4-in-1 Glass Air Fryer | 450°F |
Updated August 2026 — Ninja Crispi 4-in-1 Glass Air Fryer | 450°F | leads on cleaning and design.
The BOSWELL Glass Air Fryer offers excellent value with higher wattage and a lower price, while the Ninja Crispi provides more versatility with its multifunctional features.
Why BOSWELL Glass Air Fryer, 7.5QT with Transparent is better
Price
BOSWELL is $127.92 compared to Ninja's $179.99
Wattage
BOSWELL has a higher wattage of 1800W
User Monitoring
BOSWELL's transparent design allows for easy food monitoring
Why Ninja Crispi 4-in-1 Glass Air Fryer | 450°F | is better
Versatility
Ninja offers 4-in-1 functionality including Max Crisp and Bake
Container Options
Ninja includes both 4QT and 6-cup containers
Compact Design
Ninja's design is more space-efficient for storage
Overall score
Specifications
| Spec | BOSWELL Glass Air Fryer, 7.5QT with Transparent | Ninja Crispi 4-in-1 Glass Air Fryer | 450°F | |
|---|---|---|
| Heating Type | Hot Air | Hot Air |
| Dishwasher Safe | Yes | Yes |
| Preset Options | 5 | 4 |
| Material | Glass | Glass |
| Color | White | Gray |
Dimension comparison
Design and Build Quality
When it comes to design, the BOSWELL Glass Air Fryer features a transparent glass bowl that allows for easy monitoring of food without opening the lid. This design prevents heat loss and ensures even cooking. In contrast, the Ninja Crispi 4-in-1 Glass Air Fryer also utilizes glass containers that promote non-toxic cooking. The Ninja model is more compact with its dual-container system, offering a 4-quart and a 6-cup option, making it versatile for both small and large meals. The BOSWELL, priced at $127.92, is about 29% cheaper than the Ninja's $179.99, but both products emphasize user-friendly features that enhance the cooking experience.
Cooking Performance
In terms of cooking performance, the BOSWELL Glass Air Fryer boasts a powerful 1800W heating element, allowing for rapid preheating and even cooking. This is particularly beneficial for quick weeknight dinners. The Ninja Crispi, with a slightly lower 1500W, still provides impressive functionality with its 4-in-1 capabilities: Max Crisp, Bake, Air Fry, and Recrisp. The BOSWELL allows for customizable temperature settings up to 400°F and offers five one-touch presets, making it straightforward to achieve various cooking results. While both models perform exceptionally well, the BOSWELL may have a slight edge in heating efficiency due to its higher wattage.
Versatility and Features
The versatility of the Ninja Crispi is highlighted by its all-in-one functionality, which includes options for baking and recrisping, in addition to air frying. It comes with two containers, allowing users to cook different meal sizes simultaneously. The BOSWELL, on the other hand, is designed primarily for air frying, roasting, and baking, with five preset cooking options. While both air fryers support a range of cooking methods, the Ninja Crispi's multiple functions and additional container size make it a more adaptable choice for those seeking a multifunctional kitchen appliance.
Ease of Use
User-friendly features are essential in any kitchen appliance, and both the BOSWELL and Ninja Crispi deliver. The BOSWELL's transparent design allows cooks to visually monitor their food without needing to open the fryer. Its intuitive one-touch presets simplify the cooking process, while the Ninja Crispi's snap-lock lids and easy storage capabilities enhance convenience. Both products are dishwasher safe, promoting hassle-free cleaning. However, the Ninja’s compact design may make it easier to store, especially in smaller kitchens.
Safety Features
Safety is a key consideration for kitchen appliances, and both the BOSWELL and Ninja Crispi incorporate features to protect users. The BOSWELL includes insulated gloves and silicone mats for safe handling of hot items. The Ninja Crispi is equipped with fixed heat-safe feet, allowing it to be placed on various surfaces without risk. While both products prioritize user safety, the Ninja’s fixed feet provide a stable cooking experience, making it a slightly safer option for those concerned about surface damage.
Cleaning and Maintenance
When it comes to cleaning, both models are designed with ease in mind. The BOSWELL features a dishwasher-safe glass inner pot that resists residue buildup, ensuring a hassle-free cleaning experience. The Ninja Crispi’s containers, crisper plates, and lids are also dishwasher safe, making cleanup simple. Although both air fryers are easy to maintain, the Ninja’s nesting capability for storage can make it more convenient for users with limited kitchen space.
Price and Value
In terms of price, the BOSWELL is currently available for $127.92, making it a more budget-friendly option compared to the Ninja Crispi priced at $179.99. This translates to a cost difference of about 29%. For consumers looking for a high-quality air fryer without breaking the bank, the BOSWELL provides excellent value. However, the additional features and functionality of the Ninja Crispi may justify its higher price for users who require a more versatile cooking solution.
Which should you buy?
Choosing between the BOSWELL Glass Air Fryer and the Ninja Crispi 4-in-1 Glass Air Fryer ultimately depends on your specific cooking needs. The BOSWELL offers an excellent value with its higher wattage and user-friendly design at a lower price point. However, if versatility and multifunctionality are top priorities for you, the Ninja Crispi may be worth the investment due to its additional cooking options and container sizes. Both products excel in their own right, but understanding your cooking habits will help make the right choice.

