Koolatron Mini Fridge
- Compact Refrigerator
- 0.1 cu ft
- 0.1 cu ft
- 0.1 cu ft
- More reviewed than 88%
A cute dual-function cooler and warmer that most owners like while it works, though several report it quitting well inside the two-year mark.
As an Amazon Associate, ProductDome may earn a commission from qualifying purchases made through links on this page.
How it ranks among the 86 compact refrigerators we track
4.0★ across 1,500 Amazon ratings, Bayesian-smoothed toward the category average.
1,500 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 86 compact refrigerators we track - how the scorecard works · full compact refrigerators data report. Confidence: medium - useful but incomplete evidence.Last refreshed Jun 15, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
The Koolatron KRT04-G is the dual-mode version of Koolatron's 4 liter retro mini fridge, cooling to about 32°F below room temperature or switching to a warm mode up to 135°F. It holds six 12 oz cans and runs on either a 110V wall outlet or a 12V car plug.
Where the KRT04-P only chills, this G model adds a heat function, useful for keeping a bottle warm rather than just cold. Reviewers use it mainly as a bedside or bathroom fridge for skincare and drinks, and a few note the fan is louder than expected for its size.
- 4 liter capacity, holds six 12 oz cans
- Cools to about 32°F below room temperature or warms to 135°F
- 110V AC and 12V DC power for home or vehicle use
- Retro rounded shell with metallic hinges and twist handle
Who it's for
Good for someone who wants one small unit that can both chill drinks or cosmetics and warm something like a bottle, kept on a desk, dorm shelf, or bathroom counter. It is not sized or intended for real food storage.
What buyers say
From Amazon customer reviews.
Owners mainly use it to keep skincare or drinks cold in a bedroom or bathroom and repeatedly call it quiet enough not to notice running. The main complaints are a fan some find louder than expected and units that stopped cooling well within a year, alongside condensation inside the cabin.
Strengths and trade-offs
Drawn from this product's published specifications.
- Switches between cooling and a warm mode up to 135°F
- Fits neatly on a desk, dorm shelf, or bathroom counter
- Twist latch and retractable handle for easy carrying
Performance notes
The same CFC-free thermoelectric core as the cooling-only model runs in reverse for the warm setting, moving heat into the cabin instead of out of it, up to about 135°F. Cooling performance is otherwise similar: fast enough for six cans, but governed by room temperature rather than a set target.
Specifications
| Brand | Koolatron |
|---|---|
| Model | KRT04-G |
| Dimensions & fit | |
| Item Weight | 4.17 pounds |
| Size | 0.1 cu ft |
| Item Dimensions D x W x H | 6.8 × 9.4 × 10 inches |
| Door Orientation | Right |
| Capacity & performance | |
| Capacity | 0.1 cu ft |
| Refrigerator Net Capacity | 0.1 cu ft |
| Fresh Food Capacity | 0.1 cu ft |
| Defrost System Type | Manual |
| Adjustable Temperature Control | Yes |
| Cooling Method | Thermoelectric |
| Power & efficiency | |
| Power Source | Corded electric, DC |
| Power Plug Type | Type B - 3 pin (North American) |
| Voltage | 220 volts |
| Annual Energy Consumption | 235 Kilowatt Hours |
| Construction & materials | |
| Shelf Type | Probable common type for both shelves, if similar |
| Number Of Shelves | 2 |
| Door Shelf Count | 1 |
| Color | Aqua |
| Finish Types | Metallic |
| Compatibility & installation | |
| Installation Type | Countertop |
| Smart Home Compatibility | Not Smart Home Compatible |
| Included components | |
| Unit Count | 1 |
| Included Components | 1 Shelf, 12 Volt DC and 110 Volt AC plugs |
| Warranty & support | |
| Warranty Description | 90 days |
| Other details | |
| Lock Type | Key |
| Number of Doors | 1 |
| Number of Sections | 1 |
| Number Of Racks | 2 |
| Is Electric | Yes |
| Has Convertible Freezer | No |
| Is Product Cordless | No |
| Is Customizable | No |
| Specification Met | ETL |
| Additional Features | Manual |
| BEE Star Rating | Not Rated |
| Configuration | Compact Freezerless |
| Refrigerant | R-600A or R-290 |
| Form Factor | Compact |
| Pattern | Solid |
| Item Type Name | Retro Mini Portable Fridge, 4L Compact Refrigerator for Skincare, Beauty Serum, Face Mask, Personal Cooler, Includes 12V and AC Cords, Desktop Accessory for Home Office Dorm Travel, Aqua |
Other Koolatron compact refrigerators
How it compares
This product against the closest alternatives we track in compact refrigerators.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Koolatron Mini FridgeThis product | 4.0 / 5 | 1,500 | 4.1 / 5 |
| Chefman - Iceman Mini Portable Black Personal Fridge Cools Or Heats and Provides Compact…Chefman | 4.2 / 5 | 16,000 | 4.4 / 5 |
| Iceman Mini Portable Board Personal FridgeIceman | 4.1 / 5 | 5,100 | 4.2 / 5 |
| Galanz GLR46TRDER Retro Compact Refrigerator with Freezer Mini Fridge with Dual DoorGalanz | 4.5 / 5 | 513 | 4.3 / 5 |
| Nostalgia RF6RRAQ Retro 6-Can Personal Cooling And Heating Mini Refrigerator With Display…Nostalgia | 4.2 / 5 | 2,200 | 4.2 / 5 |
Similar compact refrigerators from other brands
Questions about the Koolatron KRT04-G
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
What is the difference between the KRT04-G and KRT04-P?
The G model adds a warm mode up to 135°F on top of cooling; the P model cools only.
Is it quiet enough for a bedroom?
Most reviewers say yes, though a few describe the fan as louder than expected for its size.
How long does it last?
Reviews are mixed. Several owners got two or more years of use, while others report failure around the one-year mark.