Home / Reviews / Chargers / ESR CryoBoost Foldable 3-in-1
Most fast 3-in-1 chargers are desk stands. ESR’s foldable takes the same idea (25W Qi2.2 iPhone charging with a cooling fan, plus an Apple Watch charger and an AirPods pad) and shrinks it to about the size of a deck of cards.
It’s built for travel first, and that explains both what’s good about it and what isn’t.
Reviewed by the Tiny Tech Box team · Not a hands-on test — written from ESR’s published specs, the live Amazon US listing, independent reviews and owner reviews · Last checked October 10, 2026
Version reviewed: ESR CryoBoost Foldable 3-in-1 Magnetic Charging Station (25W), Black, US plug · ASIN B0FHQDKX7G · Amazon US listing · ESR model 2C590
One-sentence verdict: The best-packing 25W 3-in-1 for someone with an iPhone, Apple Watch and AirPods, with the 50W adapter in the box; it’s light enough to tip over on a nightstand, and it’s priced like a premium desk station.
Alt text: ESR CryoBoost Foldable 3-in-1 Magnetic Charging Station (25W, Qi2.2), Black, US plug — product image from the Amazon listing.
Caption: ESR CryoBoost Foldable 3-in-1 — iPhone + Apple Watch + AirPods · 25W, folds for travel.
Image source: Amazon product image, served by the Amazon Creators API.
Additional photos to add when we shoot our own (each will get alt text, a caption and a source credit directly beneath it):
| Best for | Frequent travellers with an iPhone, Apple Watch and AirPods who want one charger in the bag |
| Not ideal for | Android phone owners, or anyone buying a charger that will never leave the bedside |
| Current price | $99.99 on Amazon |
| Price checked | Oct 31, 2026 |
| Version reviewed | ESR CryoBoost Foldable 3-in-1 Magnetic Charging Station (25W, Qi2.2), Black, US plug |
Folded, it is a flat plastic slab small enough to slip into a jacket pocket, or into the gap at the side of a laptop bag where nothing else ever quite fits.
Unfold it and the phone pad tilts up into a stand, the Apple Watch charger flips out, and there’s an AirPods pad in the base. The watch charger is part of the body, not a detachable puck, which Packhacker’s reviewer counted as a plus over ESR’s older travel set, since there’s nothing to leave behind in a hotel room.
The hinge is stiff, which is good. Packhacker found it sturdy enough to reposition all day, and one owner says it takes two hands to fold, which is what you want from something that’ll get thrown in a bag. It’s plastic, though, and one owner worries about scuffs in luggage.
Plug in the included 50W adapter, unfold it and drop your devices on. Magnets line the iPhone up in portrait or landscape. StandBy works.
When a phone attaches, the cooling fan starts by itself. Packhacker heard only a faint hum in a silent room, and a button on the side turns it off at night.
On a 25W-capable iPhone, it charges about as fast as wireless charging gets. ESR claims an iPhone 17 or 17 Pro reaches 60% in 30 minutes, and owners call it fast, with one reporting roughly 20% to 50% in half an hour.
The fan is what separates it from cheaper Qi2 chargers. ESR says it keeps the phone 6.5°F cooler on average, and wireless charging slows down less when the phone stays cool.
Magnet strength gets mixed reviews: some owners find the phone holds firmly, others wish it were stronger. Stability matters more. One owner who otherwise likes it says it’s easy to tip over on a nightstand, simply because it’s so small.
Works with:
Not compatible:
On sale since late 2025, it has a mostly clean record, and most owners report no problems. One says the phone charger died after four months of nightly use. The watch and AirPods pads kept going. Packhacker also pointed out that the fan is a moving part, and moving parts can get louder over time. ESR’s 12-month protection plan applies, and registering extends it to 24 months.
It’s not cheap. At $99.99, the money goes on the 25W speed, the fan, the built-in watch charger and the 50W adapter. Travel often with all three Apple devices? Then it’s money well spent, because you’re replacing three separate chargers and a wall plug with one thing that folds flat and goes in a pocket. If it’s going to live on your nightstand, the full-size ESR desk station costs the same and is steadier, and Anker’s MagGo 3-in-1 is cheaper.
4.4 ★ from 323 Amazon ratings · price & rating checked Oct 31, 2026
Price and availability may change after the date shown.
| Product | Best for | Key advantage | Main drawback | Price |
|---|---|---|---|---|
| ESR CryoBoost Foldable 3-in-1 (25W) (this review) | Frequent travellers with an iPhone, Apple Watch and AirPods who want one charger in the bag | Folds to 4.33 × 2.44 × 0.62 in and weighs about 185 g. It disappears in a bag | Light and narrow, so it’s easier to knock over on a nightstand than a desk stand | $99.99 |
| ESR CryoBoost 3-in-1 Charging Station (25W, Qi2.2) | A charger that stays on the nightstand | Heavier and steadier, detachable watch charger, Macworld’s fastest tested | Doesn’t fold; fixed angle | $99.99 |
| Anker MagGo 3-in-1 Qi2 Charging Station | Lower-cost desk 3-in-1 | Cheaper and well proven | Not as fast as 25W with cooling | $69.99 |
Travelling with all three? Get the ESR foldable. If it’ll stay at home, buy ESR’s full-size CryoBoost station instead: same price, steadier, and the fastest wireless charger Macworld has tested. Anker’s MagGo costs less if you can live without the fan.
For Apple owners who travel, this is the charger to get. It packs the fastest wireless charging an iPhone supports, a built-in Apple Watch charger and an AirPods pad into something pocket-sized, and with the adapter included, there’s nothing else to buy.
Its trade-offs come from the size and the price: it’s lighter and less stable than a desk stand, yet it costs the same as ESR’s full-size station. Never going to pack it? Buy the desk version.
| Category | Score |
|---|---|
| Design — Pocket-size fold, built-in watch charger, sturdy hinge | 5 / 5 |
| Value — Premium price, though the 50W adapter is included | 3 / 5 |
| Performance — 25W Qi2.2 with cooling; magnet strength mixed; can tip over | 4 / 5 |
| Build & Durability — Plastic build, a fan that may wear, one phone-pad failure report | 3 / 5 |
| Compatibility & Ease of Use — Plug-and-play for Apple devices; no fast charging for most Android phones | 4 / 5 |
| Overall | 3.8 / 5 · Would Buy |
Each aspect is scored as a whole number from 1 to 5. The overall score is their plain arithmetic mean, shown to one decimal place and not rounded to the nearest half point. Verdict bands: 4.5–5.0 Hell Yeah, 3.5–4.4 Would Buy, 2.5–3.4 Average, 1.0–2.4 Trash. How we score products.
| Model | 2C590 (Amazon listing) |
| Phone charging | Qi2.2, up to 25W (ESR) |
| Apple Watch charging | Apple MFW-certified fast charger, built in (ESR) |
| AirPods charging | Yes, wireless pad |
| Cooling | CryoBoost fan, can be turned off; 6.5°F cooler on average (ESR) |
| Magnet strength | 1,200 g (ESR) |
| Folded size | 4.33 × 2.44 × 0.62 in (ESR) |
| Weight | 185 g (Amazon listing) |
| In the box | Charging station, 50W USB-C adapter, 5-ft USB-C cable |
| Case limit | Magnetic cases up to 2 mm |
| Warranty | 12-month protection plan, 24 months with registration (ESR) |
| ASIN | B0FHQDKX7G |
| Manufacturer | ESR |
Figures marked “(ESR)” are the manufacturer’s published claims. “N/A” means the value is not listed on the Amazon listing or the ESR product page.
Yes, on 25W-capable iPhones (iPhone 16 series and later, with iOS 26). The iPhone Air and 16/16 Pro charge at 20W, and iPhone 12 to 15 at 15W.
No. ESR says it isn’t compatible with Google, Motorola or OnePlus phones, so pick a charger built for Android instead.
No. It’s a faint hum in a silent room, and a button turns it off for quiet nights.
Yes. A 50W USB-C wall adapter and a USB-C cable come in the box.
Every pick links to its full five-aspect review.
−22%
Prices and availability are accurate as of the date shown and are subject to change. The price and availability displayed on Amazon at the time of purchase will apply.
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Sources: Amazon product listing (ASIN B0FHQDKX7G), read October 10, 2026 · ESR product page for the CryoBoost Foldable 3-in-1 (specifications and claims) · Packhacker review (two weeks of use, including travel) · Notebookcheck launch coverage. Figures attributed to ESR are the manufacturer’s published claims; the rating, price and buyer feedback are from the live Amazon listing on the date shown.
Disclosure: As an Amazon Associate, Tiny Tech Box earns from qualifying purchases. Recommendations are based on our own research and scoring, described in full on our How We Score page.