Which medication cooler actually fits your trip?
ZKSCool CB02 vs. 4AllFamily
| Verified 2–8°C ZKSCool CB02$119.00 | 4AllFamily Voyagerfrom $199.99 | Explorer 3-in-1$139.99 | Nomad PROfrom $54.99 | |
|---|---|---|---|---|
| Cooling tech | 12V active cooling chip | USB electric + biogel | Biogel + USB hybrid | Biogel only (freeze 6–8h) |
| Holds 2–8°C | ✓ Yes, actively | USB: ambient ≤95°F · biogel ~33h @86°F | Combined: up to 52h @86°F | Up to 33h @86°F (Big) |
| Cool-down | Under 15 minutes | 30-min pre-cool advised | Needs pre-frozen pack | Needs 6–8h freezer prep |
| Untethered runtime | Up to 8h per charge* | 28–33h (after freezing) | Up to 52h (after freezing) | Up to 33h (after freezing) |
| Temperature display | ✓ LCD, real-time | ✓ Display screen | – None | ✓ Digital display |
| Noise | Under 18 dB | Not stated | – Passive | – Passive |
| Power sources | Home, car & battery | Any USB source | USB-C + freezer | Freezer (display: battery/USB) |
| Warranty / returns | 1-year / 30-day | 1-year / 30-day | 2-year / 30-day | 2-year / 30-day |
| Air travel | ✓ TSA-approved | TSA-compliant per mfr | TSA-compliant per mfr | TSA-compliant per mfr |
*Battery runtime varies with ambient temperature. Competitor specifications and prices are taken from each manufacturer’s published materials as of July 2026 and may change — verify current details with the manufacturer. All product and company names are trademarks of their respective owners; ZKSCool is not affiliated with them.
TRAVEL
Pack it. Forget it. Live the day.
A diagnosis shouldn't be a reason to cancel the trip. Below is what we've learned from carrying the cooler through TSA, EASA, and CAAC airports — country rules, packing tips, and a doctor's-note template you can hand to security.
