MEGAWISE RZ 618-3
A small 110 V cool-and-heat unit for a tent or truck cab, sold by Amazon itself.
Amazon $522.89$522.89
The MEGAWISE RZ 618-3 rates 3.5 among 110 V AC for power stations battery-powered portable air conditioners; the Cybertake S1 Pro rates 3.3 among runs on DC or a battery ones. The MEGAWISE RZ 618-3 costs $26.11 less ($522.89 vs $549).
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.
$549
Scores side by side
These two sit in different power input classes (110 V AC for power stations and runs on DC or a battery), and each is scored against the reference points for its own class, so a rating says how well each does among its own power input peers. How we rank explains each factor.
| Factor weight | MEGAWISE RZ 618-3 | Cybertake S1 Pro |
|---|---|---|
| Overall rating | 3.5/5 | 3.3/5 |
| Value 30% | 63 $109.46 per 1,000 BTU ($522.89, 4,777 BTU) | 50 $133.90 per 1,000 BTU ($549, 4,100 BTU) |
| Efficiency 25% | 100 11.4 BTU per watt (420 W rated) | 50 rated cooling power not published (neutral score used) |
| Noise 15% | 50 noise rating not published (neutral score used) | 100 38 dB rated |
| Weight 10% | 50 weight not published (neutral score used) | 81 21.6 lb |
| Warranty 20% | 0 1-year warranty | 0 warranty not published, scored as none |
Specifications
| MEGAWISE RZ 618-3 | Cybertake S1 Pro | |
|---|---|---|
| Cooling and power | ||
| Cooling capacity | 4,777 BTU | 4,100 BTU |
| Heating capacity | 2,730 BTU | - |
| Rated cooling power | 420 W | - |
| Power input | 110 V AC | DC or AC |
| Battery | Not included | Not included |
| Size and noise | ||
| Weight | - | 21.6 lb |
| Noise | - | 38 dB |
| App control | No | Yes |
| Warranty | ||
| Warranty | 1 year | - |