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Instant Omni Plus 18L vs Oster TSSTTVMNDG-SHP-2 Toaster Oven Side-by-Side Comparison

Instant Omni Plus 18L vs Oster TSSTTVMNDG-SHP-2 Toaster Oven. When it comes to digital countertop convection toaster ovens, bigger isn’t always better.

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Instant Omni Plus 18L

Oster 6 Slice Convection Oven

Instant Omni Plus 18L vs Oster TSSTTVMNDG-SHP-2 Toaster Oven

Overall Verdict

Ranking by
OverallScore Performance50% Design25% Usability25% ScoreOverall 50%Performance 25%Design 25%Usability Instant Omni Plus 18LOster 6 Slice Conve...8.58.29.38.46.77.06.26.6
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The Oster TSSTTVMNDG-SHP-2 managed to fall not too far behind the Instant Omni Plus 18L in most of our performance tests including toasting bread, roasting a whole chicken, and baking pizza. However, the Instant left the Oster in the dust with its baked french fries.

Their differences in performance could be explained by a number of factors. The Instant’s four quartz heating elements and one swirl nichrome heating element are powered with 1800 W. Meanwhile, the Oster’s four nichrome heating elements are only supplied with 1300 W in addition to the oven’s larger capacity.

Design-wise, both ovens have a slide-out crumb tray as well as other features but the Instant’s materials are more durable. Not only the Instant has more cooking functions, but it also has more accessories to accommodate more cooking methods including a rotisserie kit and an air fryer basket.

As for features of convenience, both have toggles for lighting and convection. However, the Instant’s control panel has a useful cooking status bar alongside audio cues and automatic features. While both are easy to use, the Oster’s buttons could be improved with better responsiveness.

The Instant Omni Plus 18L is the winner in all aspects, and at a fair price. Nonetheless, the Oster TSSTTVMNDG-SHP-2 is still an inexpensive, large toaster oven that does the job.

Pros & Cons

  • Informative and eye-catching package
  • Smart Programs and cooking status bar
  • Electrical safety feature for the door
  • Convenient slide-out crumb tray
  • Safeguards for all heating elements
  • Complimentary app with detailed instructions and numerous recipes
  • Helpful toggles
  • Easy-to-clean stainless steel exterior
  • Large capacity
  • Easy-to-clean stainless steel exterior
  • Cool-touch door handle
  • Convenient slide-out crumb tray
  • High-contrast digital display
  • Internal lighting available
  • Extra functions
  • Touchscreen digital displays need more contrast
  • The master-control knob can be confusing
  • Convection fan isn’t all-applicable
  • No safety mechanism for the door
  • Buttons not reliably responsive

Key Specs

Dimensions
L16.54 x W15.75 x H13.90 inches
L19. 68 x W15.19 x H11.61 inches
Weight
25.4 lbs (11.5 kg)
12.1 lbs (5.5 kg)
Control Type
black LCD digital touchscreen + one master-control knob
LCD + 15 buttons
Temperature
150°F - 450°F
150°F - 450°F
Timer
1 - 60 minutes
1 minute - 90 minutes
Cooking Functions
8
7

Where to Buy

Price at publication
$233.55
$99.39

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Analysis and Test Results

Performance

Overall Performance Scoring
8.2
7.0

Toast

7.5
6.2
From left to right, 24 pieces of toast for the top and bottom of three toast levels including lighter, medium, and darker.
On the left: Level 1; In the middle: Level 2; On the right: Level 3
From left to right, 24 pieces of toast for the top and bottom of three toast levels including lighter, medium, and darker.
The top and bottom of the best four pieces of toast from the Instant Omni Plus 18L 10-in-1 Air Fryer Toaster Oven.
On the left are the top and bottom of four pieces of toast from the first batch, and on the right are from the second batch.
Oster TSSTTVMNDG-SHP-2 ToastFrom left to right, 24 pieces of toast for the top and bottom of three toast levels including lighter, medium, and darker.
On the left: Level 1; In the middle: Level 2; On the right: Level 3
Oster TSSTTVMNDG-SHP-2 ToastFrom left to right, 24 pieces of toast for the top and bottom of three toast levels including lighter, medium, and darker.
The top and bottom of the best four pieces of toast from the Oster TSSTTVMNDG-SHP-2 6-Slice Digital Convection Toaster Oven.
On the left are the top and bottom of four pieces of toast from the first batch, and on the right are from the second batch.
Function
Toast
Toast
Number of Slices
4
4
Toast Level
2/5
2/6
Cooking Time
5m 25s
6m 43s
Second Batch
4m 1s
4m18
Convection
No
No

Pizza

8.6
8.0
A toaster oven baked 9-inch thick-crust meat pizza with cheese, onions, and green bell peppers on top inside a baking pan.
A toaster oven baked 9-inch thick-crust meat pizza with cheese, onions, and green bell peppers on top inside a baking pan.
The cross-section of a toaster oven baked pizza slice showing the crust. In the background is a pizza inside a baking tray.
Two hands break apart a slice of pizza with melty cheese, meat, and green bell peppers on top baked using a toaster oven.
A toaster oven baked 9-inch thick-crust meat pizza with cheese, onions, and green bell peppers on top inside a baking pan.
A toaster oven baked 9-inch thick-crust meat pizza with cheese, onions, and green bell peppers on top inside a baking pan.
Two slices of oven baked 9-inch thick-crust meat pizza with cheese, onions, and green bell peppers on top of one another.
Two hands break apart a slice of pizza with melty cheese, meat, and green bell peppers on top baked using a toaster oven.
Function
Bake
Bake
Temperature
450°F
450°F
Cooking Time
3m 50s
6m 50s
Convection
High
Yes

Whole Roasted Chicken

8.4
7.8
A whole roasted rotisserie chicken using a toaster oven on an enamel baking pan on a white background.
A whole roasted rotisserie chicken using a toaster oven on an enamel baking pan on a white background.
A tray of whole toaster oven roasted chicken. The thermometer has two probes inside the chicken and displays 178°F and 190°F.
Seven pieces of a carved chicken including a carcass, two breasts, two wings, and two thighs on an enamel baking pan.
The close-up of a pulled-apart roasted chicken thigh. In the background is the rest of the roasted chicken on a tray.
A whole roasted chicken using the Oster TSSTTVMNDG-SHP-2 on a broiling rack and enamel baking pan on a white background.
A whole roasted chicken using the Oster TSSTTVMNDG-SHP-2 on a broiling rack and enamel baking pan on a white background.
A tray of whole toaster oven roasted chicken. The thermometer has two probes inside the chicken and displays 190°F and 192°F.
Seven pieces of carved chicken including a carcass, two breasts, two wings, and two thighs on a broiling rack and baking pan.
Two hands pulling apart a roasted chicken thigh. In the white background is the rest of the roasted chicken on a baking pan.
Function
Roast
Bake
Temperature
350°F
350°F.
Cooking Time
50 minutes
1h
Convection
Yes
Yes

Baked French Fries

9.3
6.0
Pieces of baked french fries using a toaster oven inside an air fryer basket on a grey background.
Pieces of baked french fries using a toaster oven inside an air fryer basket on a grey background.
A close-up of pieces of baked french fries using a toaster oven inside an air fryer basket on a grey background.
Ten pieces of broken-up baked french fries are stacked on top of pieces of whole fries inside an air fryer basket.
Pieces of baked french fries using the Oster TSSTTVMNDG-SHP-2 Toaster Oven on an enamel baking pan on a white background.
Pieces of baked french fries using the Oster TSSTTVMNDG-SHP-2 Toaster Oven on an enamel baking pan on a white background.
A close-up of pieces of baked french fries using the Oster TSSTTVMNDG-SHP-2 on an enamel baking pan on a white background.
Six pieces of broken-up baked french fries are stacked on top of pieces of whole fries on an enamel baking pan.
Function
Air Fry
Bake
Temperature
400°F.
400°F
Cooking Time
15m
20 m
Convection
High
Yes

Design

Overall Design Scoring
9.3
6.2

In the Box

An oven rack, air fryer basket, rotisserie kit, lifter, the Instant Omni Plus 18L, user manual, box, and enamel baking pan.
The Oster TSSTTVMNDG-SHP-2 has 7 cooking functions including Toast, Bake, Convection Bake, Broil, Warm, Defrost, and Pizza.

Exterior

9.5
7.0
A closed front of the Instant Omni Plus 18L 10-in-1 Air Fryer Toaster Oven with exterior measurements on a white background.
A closed front of the Instant Omni Plus 18L 10-in-1 Air Fryer Toaster Oven with exterior measurements on a white background.
The front of a closed Instant Omni Plus 18L 10-in-1 Toaster Oven has a control panel and the right has ventilation holes.
The back and left sides of the Instant Omni Plus 18L have air ventilation holes. The back has a power cord and two buffers.
The top of the stainless steel Instant Omni Plus 18L 10-in-1 Air Fryer Toaster Oven on a grey background.
On a grey background, the bottom of the stainless steel Instant Omni Plus 18L 10-in-1 Air Fryer Toaster Oven has two stands.
A closed front of the Oster TSSTTVMNDG-SHP-2 Large Convection Toaster Oven with exterior measurements on a white background.
A closed front of the Oster TSSTTVMNDG-SHP-2 Large Convection Toaster Oven with exterior measurements on a white background.
The front of a closed stainless steel Oster TSSTTVMNDG-SHP-2 6-Slice Large Digital Countertop Convection Toaster Oven
The back and left sides of the Oster TSSTTVMNDG-SHP-2 Large Toaster Oven. The back has a power cord, two buffers, and holes.
On a grey background, the top of the stainless steel Oster TSSTTVMNDG-SHP-2 6-Slice Large Convection Toaster Oven has holes.
On a grey background, the bottom of the Oster TSSTTVMNDG-SHP-2 6-Slice Toaster Oven has a power cord, four stands, and holes.
Weight
25.4 lbs (11.5 kg)
12.1 lbs (5.5 kg)
Length
16.5" (42.0 cm)
19.7" (50.0 cm)
Width
15.8" (40.0 cm)
15.2" (38.6 cm)
Height
13.9" (35.3 cm)
11.6" (29.5 cm)
Material
Stainless steel
Stainless steel
Color
Silver
Black
Door Handle
cool-touch
cool-touch
Tray Indicators
Yes
No
Crumb Tray
Yes
Slide-out

Control Panel

The black touchscreen LCD of the Instant Omni Plus 18L Air Fryer Toaster Oven has 15 features and a master-control knob.
The Oster TSSTTVMNDG-SHP-2 Convection Toaster Oven has an LCD and 15 flat buttons for 7 cooking functions and 8 features.
Type
black LCD digital touchscreen + one master-control knob
LCD display + 15 buttons
Temperature
150°F - 450°F
150°F - 450°F
Timer
1 - 60 minutes
1 minute - 90 minutes
Indicator Light
Yes
Yes
Status Bar
No
No
Light Toggle
Yes
Yes
Convection Toggle
Yes
No
Rotation Toggle
Yes
No
Automatic Preheat
Yes
No
Audio Cues
Yes
No

Cooking Functions

The Oster TSSTTVMNDG-SHP-2 has 7 cooking functions including Toast, Bake, Convection Bake, Broil, Warm, Defrost, and Pizza.

Interior

9.5
6.0
The Instant Omni Plus 18L’s cooking chamber has 2 bottom heating elements, 3 guide rails, a rotisserie socket and bracket.
The Instant Omni Plus 18L’s cooking chamber has 2 bottom heating elements, 3 guide rails, a rotisserie socket and bracket.
The 2 bottom quartz heating elements of the Instant Omni Plus 18L 10-in-1 Air Fryer Toaster Oven have guards.
The cooking chamber ceiling of the Instant Omni Plus 18L Toaster Oven has two quartz and one swirl nichrome heating element.
The cooking chamber’s right wall of the Instant Omni Plus 18L has four guide rails, a rotisserie socket, and a shining light.
The Oster TSSTTVMNDG-SHP-2 Oven’s cooking chamber has 4 nichrome heating elements, 2 guide rails, a light, and a fan cavity.
The Oster TSSTTVMNDG-SHP-2 Oven’s cooking chamber has 4 nichrome heating elements, 2 guide rails, a light, and a fan cavity.
The cooking chamber’s right wall of the Oster TSSTTVMNDG-SHP-2 Toaster Oven has 2 guide rails, a light, and a fan cavity.
Heating Elements
4 quartz and 1 nichrome
4 nichrome
Convection Fan
Yes
Yes
Lighting
Yes
Yes
Tray Levels
4
2
Rotisserie
Yes
No
Safety Hook
No
No

Power Cord

A three-pronged plug power cord. In the background is the Instant Omni Plus 18L 10-in-1 Air Fryer Toaster Oven.
A two-pronged plug power cord. In the background is the Oster TSSTTVMNDG-SHP-2 6-Slice Large Digital Convection Toaster Oven.
Length
2.8 ft (0.9 m)
26.0" (66.0 cm)
Type
3-prong plug
2-prong plug
Power
1800 W
1300 W
Rated Output
120 V ~ 60 Hz
120 V ~ 60 Hz

Accessories

A stainless steel baking rack of the Instant Omni Plus 18L 10-in-1 Air Fryer Toaster Oven on a grey background.
A stainless steel baking rack of the Oster TSSTTVMNDG-SHP-2 6-Slice Digital Convection Toaster Oven on a grey background.
Length
12.4" (31.5 cm)
14.2" (36.1 cm)
Width
11.4" (29.0 cm)
15.0" (38.1 cm)
Height
0.9" (2.4 cm)
0.2" (0.5 cm)
Material
Stainless steel
Stainless steel
Dishwasher Safe
Yes
Yes

Build Quality

9.0
6.0
The front of an opened Instant Omni Plus 18L with a rack, a baking pan, an air fryer basket, a lifter, and a rotisserie kit.
The front of an opened Instant Omni Plus 18L with a rack, a baking pan, an air fryer basket, a lifter, and a rotisserie kit.
An oxidized slide-out crumb tray of the Instant Omni Plus 18L 10-in-1 Air Fryer Toaster Oven on a grey background.
The front of an opened Oster TSSTTVMNDG-SHP-2 Large Convection Toaster Oven with an oven rack, baking pan, and broiling rack.

Capacity

An opened front of the Instant Omni Plus 18L 10-in-1 Air Fryer Toaster Oven with interior measurements on a white background.
An opened front of the Oster TSSTTVMNDG-SHP-2 Large Convection Toaster Oven with interior measurements on a white background.
Length
13.8" (35.0 cm)
14.2" (36.1 cm)
Width
12.6" (32.0 cm)
12.6" (32.0 cm)
Height
8.7" (22.0 cm)
9.4" (24.0 cm)

Usability

Overall Usability Scoring
8.4
6.6

User Control

9.9
6.0

Ease of Use

8.0
6.0

Cleanability

7.0
9.0
Grease on the slide-out crumb tray inside the cooking chamber of the Instant Omni Plus 18L 10-in-1 Air Fryer Toaster Oven.
Grease on the slide-out crumb tray inside the cooking chamber of the Instant Omni Plus 18L 10-in-1 Air Fryer Toaster Oven.
The cleaned cooking chamber floor and 2 bottom heating elements of the Instant Omni Plus 18L 10-in-1 Air Fryer Toaster Oven.
Brushing the stained upper quartz heating elements of the Instant Omni Plus 18L 10-in-1 Air Fryer Toaster Oven.
Grease on the glass door of a closed stainless steel Oster TSSTTVMNDG-SHP-2 6-Slice Large Digital Convection Toaster Oven.
Grease on the glass door of a closed stainless steel Oster TSSTTVMNDG-SHP-2 6-Slice Large Digital Convection Toaster Oven.
Grease on the stainless steel Oster TSSTTVMNDG-SHP-2 6-Slice Large Digital Convection Toaster Oven’s cooking chamber wall.
Grease and chicken skin stuck to the enamel baking pan of the Oster TSSTTVMNDG-SHP-2 6-Slice Digital Convection Toaster Oven.
The cleaned enamel baking pan of the stainless steel Oster TSSTTVMNDG-SHP-2 6-Slice Large Digital Convection Toaster Oven.

Behind the Comparison

Headshot of Alan Nguyen
Alan NguyenReviewer

Alan Nguyen is a writer and product reviewer at HealthyKitchen101. His major in English language teaching taught him to present concise information. In addition to his cooking hobby, he values the practical aspects of household appliances.

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Lap VoTest Lead

Lap is Head of the Research, Testing, and Review Team (RTR Team) at HealthyKitchen101.com, where he directs and supervises the testing of kitchen gadgets and appliances.

Headshot of Tuyet Pham
Tuyet PhamProfessional Chef

Tuyet Pham is an award-winning Saigonese chef passionate about delicious and healthful foods. At HealthyKitchen101, she develops recipes and collaborates with our Research, Testing, and Review lab to evaluate the performance of cooking appliances. Her assessments add a strong authoritative voice to our product scoring process.

Headshot of Nguyen Ntk
Nguyen NtkVisual Specialist

Nguyen Ntk is a graphic designer, photographer, and videographer whose philosophy centers around respecting and celebrating the beauty of reality. Through his lenses, Nguyen strives to capture the true essence of objects and events, showcasing and highlighting authentic features without distortion or exaggeration.

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