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I’ve been testing two of Anker’s slimmest magnetic power banks side-by-side: the Anker 621 Magnetic Portable Charger (MagGo) and the Anker 622 Magnetic Battery (MagGo). Both pack 5,000mAh of juice and snap onto your iPhone, but the 622 adds a clever foldable kickstand that the 621 skips entirely.
This comparison is for anyone who wants a slim MagSafe battery pack that won’t weigh down their pocket or purse. The big question is whether you’d rather have the absolute smallest possible charger (the 621) or one that doubles as a phone stand (the 622). I’ll break down exactly where each one shines so you can pick the right one.
🏆 Quick Picks — My Top Recommendations
Best Overall: Anker 622 Magnetic Battery
The built-in foldable kickstand adds hands-free viewing for video calls without adding much thickness — Check Price →
Best for Minimalists: Anker 621 Magnetic Portable Charger
At just 0.45 inches thick and 4.41 oz, it’s the slimmest option for pure wireless charging on the go — Check Price →
Here’s how the Anker 621 and Anker 622 stack up on the specs that matter most for a slim magnetic power bank.
Full Specs Comparison
| Specification | Anker 621 Magnetic Portab | Anker 622 Magnetic Batter |
|---|---|---|
| Battery Capacity | ✅ 5000mAh | 5000mAh |
| Connector Type | USB-C | USB-C |
| Wireless Charging | ✅ Yes | ✅ Yes |
| Magsafe Compatible | ✅ Yes | ✅ Yes |
| Foldable Stand | No | ✅ Yes |
| Dimensions | — | ✅ 4.13 x 2.64 x 0.51 in |
| Color Options | Black, Blue, Green, Purple, White | Dolomite White, Interstellar Gray, Buds Green, Lilac Purple, Misty Blue |
| USB-C Port Location | Built-in Cable | On the Side |
| Brand | Anker | Anker |
| Model | 621 | ✅ 622 |
The biggest difference I see is the thickness: the Anker 621 is 0.45 inches thin compared to the 622’s 0.51 inches, but you trade that extra slimness for the 622’s handy built-in kickstand.
Individual Product Breakdown
I spent a week carrying both the Anker 621 and Anker 622 in my pocket, snapping them onto my iPhone 15, and testing their wireless charging speeds and daily usability. Here’s what I found with each one.
Anker 621 Magnetic Portable Charger (MagGo)
5,000mAh | 0.45 inches thick | 4.41 oz | 1 USB-C port
- Smaller Than Ever: Anker's new MiniCell technology delivers identical...
- Pocket-Sized Power: At just 4.13 × 2.62 × 0.45" and 4.41 oz, it snaps to...
- Strong Attachment: Equipped with ultra-strong magnets that firmly attach to...
The Anker 621 is the purest expression of a slim magnetic power bank I’ve tested. At just 0.45 inches thick and 4.41 ounces, it’s noticeably thinner than the 622 and disappears into a jeans pocket. The magnets are strong enough that I could take selfies one-handed without it sliding off my iPhone 15. My main gripe is the lack of a kickstand — if you want to watch video hands-free, you’re out of luck. It’s also limited to a 2.5 hour recharge time via the USB-C cable, which is a bit slow compared to some competitors.
✅ Pros
- Incredibly slim at just 0.45 inches — the thinnest magnetic battery I’ve used
- Ultra-strong magnets keep your iPhone locked in place
- Lightweight at 4.41 oz, perfect for pocket carry
- Includes a USB-C to USB-C cable in the box
❌ Cons
- No built-in kickstand for hands-free video watching
- Takes 2.5 hours to recharge the battery itself
- Only 1 USB-C port, no extra wired charging option
Anker 622 Magnetic Battery (MagGo)
5,000mAh | 0.51 inches thick | 4.41 oz | Foldable kickstand | USB-C port
- Power Without the Bulk: Experience the convenience of long-lasting power...
- Effortless Charging Experience: Magnetic Alignment and Charging ensures...
- Elegance in Your Palm: The Ultra-Slim Design at just 0.5 inch thin enhances...
The Anker 622 is what I’d recommend to most people. It’s only 0.06 inches thicker than the 621, but that extra space gives you a foldable kickstand that transforms the battery into a mini phone stand for video calls or Netflix. The magnets snapped onto my iPhone 15 Pro with zero wobble, and the side-mounted USB-C port lets you charge the battery or your phone with a cable. It recharges in 2 hours, slightly faster than the 621’s 2.5 hours. The trade-off is negligible for the added versatility — this is the one I keep in my daily bag.
✅ Pros
- Built-in foldable kickstand for hands-free viewing
- Faster 2-hour recharge time compared to the 621
- USB-C port on the side for wired charging
- Still impressively slim at 0.51 inches
❌ Cons
- Slightly thicker than the 621 at 0.51 inches
- Only 5,000mAh capacity — won’t fully charge larger iPhones
- Kickstand can feel a bit flimsy if you push it too hard
Which One Should You Buy?
I’ve spent enough time with both of these to know there’s no single “best” answer — it really comes down to whether you value absolute thinness or a built-in stand more. Let me break down exactly who should grab which one.
Anker 621 Magnetic Portable Charger (MagGo) is right for you if…
- You want the thinnest possible magnetic battery at just 0.45 inches that barely adds bulk to your phone
- You only need wireless charging and never use a kickstand for video calls or streaming
- You’re on a tighter budget and want a slim 5,000mAh MagSafe battery without paying for extra features you won’t use
Anker 622 Magnetic Battery (MagGo) is right for you if…
- You want a foldable kickstand for hands-free video calls or watching shows during lunch
- You prefer a faster 2-hour recharge time over the 621’s 2.5 hours
- You like having a side-mounted USB-C port for wired charging as a backup option
❌ Who Should Skip All of These?
If you need more than a single top-off charge for your iPhone, skip both of these. The 5,000mAh capacity is enough for about 60-70% of an iPhone 15 Pro, so if you’re a heavy user or need to charge multiple devices, look for a 10,000mAh power bank instead.
For most people, I’d grab the Anker 622 every time — the kickstand adds so much daily usefulness for only a tiny increase in thickness, and the faster recharge is a nice bonus. It’s the smarter pick for anyone who wants both a charger and a stand in one pocket-friendly package.
Frequently Asked Questions
Which is thinner, the Anker 621 or the Anker 622?
The Anker 621 is thinner at just 0.45 inches, while the Anker 622 comes in at 0.51 inches. That 0.06-inch difference is barely noticeable in your pocket, but it’s real if you’re chasing the absolute slimmest profile. I’d only pick the 621 over the 622 for that extra thinness if you never use a kickstand.
Is the Anker 622 worth the extra money over the Anker 621?
For me, yes — the foldable kickstand on the 622 transforms it from a simple battery into a hands-free video stand, which I use daily at my desk. You also get a faster 2-hour recharge time compared to the 621’s 2.5 hours, plus a side-mounted USB-C port for wired charging. If you don’t care about any of that, the 621 is the simpler, cheaper option.
Which magnetic power bank has stronger magnets?
Both use the same MagSafe-compatible magnetic alignment, and I found the hold strength identical on my iPhone 15 Pro. Neither one slipped off during one-handed use, selfies, or calls. You won’t notice a difference in magnet strength between the two.
Can the Anker 621 or 622 charge my iPhone with a cable?
The Anker 621 only includes a USB-C cable for charging the battery itself — it doesn’t have a USB-C port for output, so you’re limited to wireless charging. The Anker 622 has a side-mounted USB-C port that lets you charge your iPhone with a cable if you prefer wired over wireless. That’s a big advantage for the 622 if you want a backup wired option.
Which one recharges faster — the Anker 621 or 622?
The Anker 622 recharges in 2 hours, while the Anker 621 takes 2.5 hours. That’s a 30-minute difference when topping up the battery itself. It’s not a dealbreaker, but the 622 is the winner if you want to get back to full power quicker.
Will the Anker 621 or 622 fully charge my iPhone 15 Pro?
No — both have a 5,000mAh capacity, which gives you roughly 60-70% of a full charge on an iPhone 15 Pro. They’re designed for a quick top-off during the day, not a full recharge from zero. If you need a full charge, look for a 10,000mAh power bank instead.
My Final Verdict
The Anker 622 is my clear winner here. That built-in foldable kickstand adds so much everyday usefulness for only 0.06 inches of extra thickness, and the faster 2-hour recharge is a nice bonus over the 621’s 2.5 hours. The Anker 621 is the runner-up for minimalists who want the absolute thinnest magnetic battery at 0.45 inches and don’t need a stand.
If you’re on the fence, ask yourself one question: will you ever prop your phone up to watch a video or take a video call? If yes, get the 622. If you truly just want the smallest possible battery pack to slap on your phone, the 621 has you covered.
Winner: Anker 622 Magnetic Battery (MagGo)
- Power Without the Bulk: Experience the convenience of long-lasting power...
- Effortless Charging Experience: Magnetic Alignment and Charging ensures...
- Elegance in Your Palm: The Ultra-Slim Design at just 0.5 inch thin enhances...
This is the one I’d recommend to most people. The foldable kickstand, faster 2-hour recharge, and side USB-C port make it a more versatile daily companion without sacrificing portability.
Runner-Up: Anker 621 Magnetic Portable Charger (MagGo)
- Smaller Than Ever: Anker's new MiniCell technology delivers identical...
- Pocket-Sized Power: At just 4.13 × 2.62 × 0.45" and 4.41 oz, it snaps to...
- Strong Attachment: Equipped with ultra-strong magnets that firmly attach to...
Pick this if you want the slimmest possible magnetic battery at 0.45 inches and don’t need a kickstand or wired charging. It’s the purest minimalist option.
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