Frigidaire EFR441AMZ 4.5 cu ft vs Summit CT663BKADA

Last updated: November 9, 2026

The Frigidaire EFR441AMZ 4.5 cu ft is the better undercounter refrigerator overall, rated 3.5 to 3.1. The Frigidaire EFR441AMZ 4.5 cu ft leads on value. The Summit CT663BKADA wins on warranty and capacity. The Frigidaire EFR441AMZ 4.5 cu ft costs $852.18 less ($249.99 vs $1,102.17).

Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.

Frigidaire EFR441AMZ 4.5 cu ft vs Summit CT663BKADA

Which should you buy?

Scores side by side

Each factor is scored 0-100 against the same fixed reference points for every refrigerators undercounter refrigerator; a clear win is highlighted. How we rank explains each one.

Factor weightFrigidaire EFR441AMZ 4.5 cu ftSummit CT663BKADA
Overall rating3.5/53.1/5
Value 30%100 $55.55 per cu ft ($249.99, 4.5 cu ft)56 $218.68 per cu ft ($1,102.17, 5 cu ft)
Capacity 15%67 4.5 cu ft85 5 cu ft
Installation 20%35 front venting not stated, indoor use35 front venting not stated, indoor use
Energy use 15%50 energy use not published (neutral score used)13 330 kWh a year
Noise 5%50 noise level not published (neutral score used)50 noise level not published (neutral score used)
Warranty 15%0 1-year warranty40 1-year warranty, 5 years on the compressor

Specifications

Frigidaire EFR441AMZ 4.5 cu ftSummit CT663BKADA
Storage
Capacity4.5 cu ft5 cu ft
Fridge section-4.5 cu ft
Freezer section-0.6 cu ft
Defrost-Cycle (manual freezer)
Installation
Width20.3 in23.6 in
Height32.1 in32 in
Depth22.2 in23.5 in
Outdoor useIndoorIndoor
Safety listing-UL
Reversible doorYes-
Lock-No
Running
Energy use-330 kWh/yr
ENERGY STAR-Yes
Build
Weight50.7 lb100 lb
Warranty1 year1 year
Compressor warranty-5 years

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