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JustSmart bAy-mU51b-NdX6I5jepHn-v88baC7 review

A portable three-in-one rated 14,000 BTU for rooms up to 700 square feet, with four modes and a 24-hour timer.

Where this leaves you Fourteen thousand BTU and 700 square feet claimed, with no cooling standard named anywhere. The other 14,000 BTU portable on this shelf publishes a SACC figure 27 per cent below its headline, and this one does not publish one at all.

What the maker puts in writing

  • 14,000 BTU, up to 700 sq ft — no standard named
  • 4 modes, 3 fan speeds, 24-hour timer
  • 59 °F to 88 °F · auto mode: cool at ≥75 °F, fan below
  • Auto water evaporation, slide-out washable filter
  • Memory after power loss

One number, no standard

Portable air conditioners are rated two ways. ASHRAE measures what the machine makes; SACC measures what reaches the room after the hose has given some of the heat back.

The other 14,000 BTU portable on this shelf prints both, and the gap between them is 3,800 BTU. This listing prints one figure and claims the same 700 square feet.

That is not evidence the machine is worse. It is evidence that this page cannot tell you, and the one next to it can.

What it does publish well

A temperature range, an auto-mode threshold, a timer and a filter you can slide out. On the controls, this is one of the more specific listings on the shelf.

Availability

Read on the day this page was built: $290 at the American Amazon shop.

Read from Keepa on the day this page was last revised; stock and price both move without notice.

Prices quoted in this text were read on 2026-10-04. The live price is at the top of the page.

Where this one sits on its shelf

At $290, it is the 5 cheapest of the 9 models in this category published here.

  • Lowest price on the shelf$140
  • Median$290
  • Highest price on the shelf$610

The good and the less good

Strengths

  • Publishes its auto-mode threshold — cooling at or above 75 °F, fan below — which no other unit on this shelf does
  • A published temperature range of 59 to 88 °F, the only adjustable span given here
  • Auto water evaporation, so there is no tank to empty under normal use

Compromises

  • Names no cooling standard: the other 14,000 BTU portable on this shelf publishes 10,200 BTU SACC alongside its headline figure
  • Claims 700 square feet on an unqualified rating, the same area the SACC-disclosing portable claims
  • No noise figure, where five units on this shelf publish one

Specifications

TypePortable, on castors, with a window sealing kit and exhaust hose
Cooling14,000 BTU — no standard named
SACC ratingNot stated by the maker
Room sizeUp to 700 sq ft
Modes4: cool, dehumidify, fan, auto
Fan speeds3: high, medium, low
Temperature range59 °F to 88 °F
Auto modeCools at or above 75 °F, fan below 75 °F
Other24-hour timer, swing, auto water evaporation, slide-out washable filter, memory after power loss
Amazon referenceB0HG1QGRR1
EAN0888808065038

The questions that keep coming up

Is 14,000 BTU here the same as 14,000 BTU elsewhere?

Impossible to tell from this listing, and that is the point. The other 14,000 BTU portable on this shelf publishes both ASHRAE and SACC — 14,000 and 10,200 — because a hose returns heat to the room. This listing gives one number and no standard.

What does auto mode actually do?

It cools when the room is at or above 75 °F and runs the fan below it. That threshold is published, which no other unit on this shelf does, and it tells you exactly when the compressor will start.

Do I need to drain it?

The listing says auto water evaporation, which means the condensate is pushed out through the exhaust under normal humidity. In very humid weather most portables still need draining; this listing does not cover that case.

Who this one is for, among home comfort appliances

A room that cannot take a window unit, where the lower price matters more than a disclosed rating

Price and availability, for home comfort appliances

Details checked on October 4, 2026.

What buyers actually choose

Amazon reports what buyers took in the month before this page was last checked: at least 500.

The figure is a floor, rounded by Amazon, and read through Keepa — it says what buyers picked, not what a maker claims.

Sources

Specifications: the manufacturer sheet for home climate appliances and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.

How these home comfort appliances are assessed here