Microwave
Products
In The Lab
Forums
Newsletters
Join now
Best
Microwaves Countertop Over-The-Range Small Cheap And Budget
Tools
Compare NEW Results Table Tool Review List Review Index Review Pipeline Vote Custom Ratings
Popular
Breville the Smooth Wave Toshiba EM131A5C-BS LG MVEL2033F LG MVEM1825F Panasonic NN-SC67NS Panasonic NN-SN67HS IKEA GÅTEBO Panasonic NN-CD66NS Toshiba ML-EC42P(SS) GE JVM6175SKSS Panasonic NN-SN975S Panasonic NN-CD87KS Sharp SMC1162HS Panasonic NN-SN68QB LG LMC0975ST GE JVM3160RFSS LG NeoChef MSER2090S Panasonic NN-SN77HS Toshiba EM925A5A-BS KitchenAid KMHS120ESS
30 Microwaves bought and tested
Supported by you via membership, and when you purchase through links on our site, we may earn an affiliate commission.
  1. Home
  2. Microwave
  3. Compare

Panasonic NN-SN77HS vs NN-CD66NS

Which Microwave Is Better?

    Top
    Main Differences
    Design
      BodyInternal CapacityFeaturesEase Of UseIn The Box
    Performance
      PowerIn-Use NoiseShallow Dish Heating UniformityDeep Dish Heating Uniformity
    Comments

Products

Panasonic NN-SN77HS
Panasonic NN-CD66NS

Tested using Methodology v1.1

Updated Mar 23, 2026 04:19 PM

SEARCH
Amazon.com

Tested using Methodology v1.1

Updated Mar 06, 2026 05:46 PM

SEE PRICE
Panasonic
Panasonic NN-SN77HS Picture

Track

Panasonic NN-CD66NS Picture

Track

Installation
Countertop
Inverter Technology
Yes
Convection Cooking
No
Installation
Countertop
Inverter Technology
Yes
Convection Cooking
Yes

Our Verdict

Panasonic NN-SN77HS

Panasonic NN-CD66NS

The Panasonic NN-SN77HS and Panasonic NN-CD66NS have different strengths. The NN-SN77HS heats food significantly faster and has a much bigger capacity, despite both models being about the same size overall. Tasks like adjusting the power level require fewer steps. On the other hand, the NN-CD66NS is a multi-function microwave that can also air fry, bake, and broil. It's also much quieter. While its controls aren't more convenient overall, the dial and physical buttons provide better feedback. 

SHARE THIS COMPARISON

0 

Variants

  • NN-SN77HS (Stainless Steel)
  • NN-CD66NS (Stainless Steel)

Review

See Panasonic NN-SN77HS Review
See Panasonic NN-CD66NS Review
1 
0 

Check Price

Stainless Steel
NN-SN77HS
SEARCH
Amazon.com
Stainless Steel
NN-CD66NS
SEE PRICE
Panasonic
Stainless Steel
NN-SN77HS
SEE PRICE
BestBuy.com
Stainless Steel
NN-CD66NS
SEARCH
Amazon.com
Stainless Steel
NN-SN77HS
SEARCH
Walmart.com
Stainless Steel
NN-CD66NS
SEE PRICE
HomeDepot.com
Stainless Steel
NN-SN77HS
SEARCH
Lowes.com
Stainless Steel
NN-CD66NS
SEARCH
Walmart.com
Stainless Steel
NN-SN77HS
SEARCH
HomeDepot.com
Stainless Steel
NN-CD66NS
SEARCH
Lowes.com
Stainless Steel
NN-SN77HS
SEARCH
Panasonic
Stainless Steel
NN-CD66NS
SEARCH
BestBuy.com

Main Differences for
Everyday Use

Threshold 

0.10

Everyday Use 
 

7.8
7.4

Internal Capacity 
 

8.1
6.5

Power 
 

10
8.5

Ease Of Use 
 

6.3
7.2

Full Comparison

Design

Body 
 

Microwave Dimensions Photo 
 

Compare High-Res
Panasonic NN-SN77HS Microwave Dimensions Photo
Compare High-Res
Panasonic NN-CD66NS Microwave Dimensions Photo

Installation 
 

Countertop
Countertop

Height  

11.9" (30.1 cm)
13.0" (33.0 cm)

Width  

21.9" (55.5 cm)
21.8" (55.3 cm)

Depth Without Handle 
 

19.1" (48.6 cm)
18.0" (45.7 cm)

Depth With Handle 
 

N/A
18.0" (45.7 cm)

Power Cord Length  

3.64 ft (1.11 m)
3.66 ft (1.12 m)

Internal Capacity 
 

8.1
6.5

Cooking Chamber Photo 
 

Compare High-Res
Panasonic NN-SN77HS Cooking Chamber Photo
Compare High-Res
Panasonic NN-CD66NS Cooking Chamber Photo

Advertised Chamber Volume 
 

1.6 cu. ft. (45.3 L)
1.3 cu. ft. (36.8 L)

Turntable Diameter 
 

15.0" (38.0 cm)
13.6" (34.5 cm)

Chamber Height 
 

8.5" (21.7 cm)
6.8" (17.2 cm)

Chamber Width 
 

16.5" (41.9 cm)
14.5" (36.9 cm)

Chamber Depth 
 

18.4" (46.8 cm)
16.0" (40.7 cm)

Measured Chamber Volume 
 

1.50 cu. ft. (42.6 L)
0.91 cu. ft. (25.8 L)
Show Text 

Features  

Control Panel Picture 
 

Compare High-Res
Panasonic NN-SN77HS Control Panel Picture
Compare High-Res
Panasonic NN-CD66NS Control Panel Picture

Cooking Sensor 
 

Yes
Yes

Convection Cooking 
 

No
Yes

Add Time Button 
 

Yes
Yes

Mute Sounds Button 
 

Yes
Yes

Lock Controls Button 
 

Yes
Yes
Show Text 

Ease Of Use 
 

6.3
7.2

Usability Video  

Control Interface 
 

Membrane Touch Panel
Dials + Physical Buttons

# Of Actions For 3:00 At 100% 
 

4
3

# Of Actions For 2:30 At 50% 
 

6
8

Door Release 
 

Button
Button

In The Box 
 

In The Box Photo 
 

Compare High-Res
Panasonic NN-SN77HS In The Box Photo
Compare High-Res
Panasonic NN-CD66NS In The Box Photo
Show Text 
Performance

Power 
 

10
8.5

Microwave Power Graph 
 

Compare High-Res
Panasonic NN-SN77HS Microwave Power Graph
Compare High-Res
Panasonic NN-CD66NS Microwave Power Graph

Inverter Technology 
 

Yes
Yes

Advertised Microwave Output Power 
 

1,250 W
1,250 W

Tested Heating Rate At 100% Power 
 

806 W
687 W

In-Use Noise 
 

6.9
8.8

Noise Video  

Avg. Noise @ 100% Power 
 

54.4 dBA
43.8 dBA
Show Text 

Shallow Dish Heating Uniformity 
 

Marshmallow Heatmap 
 

Compare High-Res
Panasonic NN-SN77HS Marshmallow Heatmap
Compare High-Res
Panasonic NN-CD66NS Marshmallow Heatmap

Area Of Underheated Dinner Plate 
 

0%
0%

Grayscale Range Dinner Plate 
 

22
13

Area Of Underheated Turntable 
 

0%
0%

Grayscale Range Turntable 
 

36
13
Show Text 

Deep Dish Heating Uniformity 
 

Mashed Potato 100% Heatmap 
 

Compare High-Res
Panasonic NN-SN77HS Mashed Potato 100% Heatmap
Compare High-Res
Panasonic NN-CD66NS Mashed Potato 100% Heatmap

Min. Food Temperature (100% Power) 
 

73 °F (23 °C)
N/A

Food Temperature Range (100% Power) 
 

126 °F (70 °C)
N/A

Mashed Potato 50% Heatmap 
 

Compare High-Res
Panasonic NN-SN77HS Mashed Potato 50% Heatmap
Compare High-Res
Panasonic NN-CD66NS Mashed Potato 50% Heatmap

Min. Food Temperature (50% Power) 
 

82 °F (28 °C)
N/A

Food Temperature Range (50% Power) 
 

121 °F (67 °C)
N/A
Show Text 

Check Price

Stainless Steel
NN-SN77HS
SEARCH
Amazon.com
Stainless Steel
NN-CD66NS
SEE PRICE
Panasonic
Stainless Steel
NN-SN77HS
SEE PRICE
BestBuy.com
Stainless Steel
NN-CD66NS
SEARCH
Amazon.com
Stainless Steel
NN-SN77HS
SEARCH
Walmart.com
Stainless Steel
NN-CD66NS
SEE PRICE
HomeDepot.com
Stainless Steel
NN-SN77HS
SEARCH
Lowes.com
Stainless Steel
NN-CD66NS
SEARCH
Walmart.com
Stainless Steel
NN-SN77HS
SEARCH
HomeDepot.com
Stainless Steel
NN-CD66NS
SEARCH
Lowes.com
Stainless Steel
NN-SN77HS
SEARCH
Panasonic
Stainless Steel
NN-CD66NS
SEARCH
BestBuy.com
Back to Top

Panasonic NN-SN77HS

Panasonic NN-CD66NS

Comments

  1. Comparison
 • Posted 1 month ago

Panasonic NN-SN77HS vs Panasonic NN-CD66NS: Main Discussion

What do you think of these products? Let us know below.


Looking for a personalized buying advice from the RTINGS.com experts? Members have direct access to buying advice on our member forum.

See All Kitchen Discussions
 Share
0 
PreviewBack to editorFormat guide
No comments yet, refresh to see new ones
We make money directly from you via Membership (which gives you access to extra features) and when you buy a product after clicking a link to a retailer. Learn more about how we work.
We buy our own products, just like you, mostly from the United States. When a product is discontinued or no longer popular, we sell the review units locally. See what products we currently have for sale.
© 2026 9298-5266 Quebec Inc. All Rights Reserved.