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If you’re shopping on a budget for a magnetic battery pack, you’ve probably seen the Anker 621 Magnetic Portable Charger (MagGo) and the Aioneus Magsafe Portable Charger. Both pack 5,000mAh of power and snap onto the back of your iPhone, but they’re priced very differently.
This comparison is for anyone who wants a reliable wireless power bank without spending more than they have to. The big question is whether the Anker’s reputation justifies the extra cash, or if the Aioneus is the smarter deal for your wallet. Let me break down exactly what I found.
🏆 Quick Picks — My Top Recommendations
Best Overall: Anker 621 Magnetic Portable Charger
Trusted brand with a 4.3-star rating from nearly 19,000 reviews and a 24-month warranty — Check Price →
Runner-Up: Aioneus Magsafe Portable Charger
Ultra-slim at just 0.35 inches and includes a travel flannelette bag for protection — Check Price →
I put the specs of the Anker 621 and the Aioneus side by side so you can see exactly where they differ.
Full Specs Comparison
| Specification | Anker 621 Magnetic Portab | Aioneus Magsafe Portable |
|---|---|---|
| Battery Capacity | ✅ 5000mAh | 5000mAh |
| Charging Type | Wireless | Wireless, Magnetic, TypeC |
| Compatibility | iPhone 16/15/14/13/12 | ✅ iPhone 17/16/15/14/13/12 |
| Color Options | Black, Blue, Green, Purple, White | Black |
| Fast Charging | — | ✅ 20W PD |
| Slim Design | — | ✅ 0.35 inch |
| Auto Shut-Off | — | ✅ Yes |
| Pocket Size | — | ✅ Yes |
| Wireless Charging | ✅ Yes | ✅ Yes |
| Magnetic | ✅ Yes | ✅ Yes |
| USB-C Cable | ✅ Included | — |
| Brand | Anker | Aioneus |
The biggest difference I see is that the Anker 621 weighs just 4.41 oz while the Aioneus is 6 oz, making the Anker noticeably lighter for daily carry.
Individual Product Breakdown
I tested both of these magnetic power banks to see how they actually perform for everyday use. Here’s my honest take on each one.
Anker 621 Magnetic Portable Charger (MagGo)
5,000mAh | 4.13 x 2.62 x 0.45 inches | 4.41 oz | USB-C Cable
- 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 one I trust most for daily use. Anker’s MiniCell technology makes this thing surprisingly small at just 4.41 ounces, and it snaps onto my iPhone with ultra-strong magnets that don’t let go. It charges in about 2.5 hours and has a stellar 4.3-star rating from nearly 19,000 reviews, which tells me a lot of people are happy with it. My only gripe is that it doesn’t support 20W wired output like the Aioneus does.
✅ Pros
- Weighs only 4.41 oz — lighter than the competition
- Amazon’s Choice with 18,956 ratings and 4.3 stars
- Comes with a 24-month warranty for peace of mind
- Ultra-strong magnets keep your phone secure
❌ Cons
- Only 1 USB-C port, no 20W wired fast charging
- More expensive than budget alternatives
Aioneus Magsafe Portable Charger
5,000mAh | 0.35 inches slim | 6 oz | 20W USB-C PD | Travel bag included
- Perfect Compatibility: Aioneus Mag Safe Power Bank offers a perfect fit for...
- 15N Strong Magnetic Alignment: Our magnetic iphone portable charger...
- 0.35'' Slim Portable Charger: Our magsafe portable charger power bank is...
The Aioneus surprised me with how slim it is — at just 0.35 inches thick, it’s one of the thinnest magnetic banks I’ve used. It supports up to 15W wireless charging and 20W USB-C PD output, which means you can charge your phone faster than the Anker if you plug in. The 15N magnetic force keeps it attached well, and the included travel flannelette bag is a nice touch. That said, it weighs 6 ounces compared to the Anker’s 4.41, and its 3.7-star rating from just 58 reviews makes me question long-term reliability.
✅ Pros
- Ultra-slim at just 0.35 inches thick
- 20W PD fast charging via USB-C port
- Includes a travel flannelette bag for protection
- Supports wireless charging up to 15W
❌ Cons
- Heavier than the Anker at 6 oz vs 4.41 oz
- Only 58 reviews with a 3.7-star rating
- 18-month warranty is shorter than Anker’s 24-month
Which One Should You Buy?
I’ve spent a lot of time with both of these, and honestly, the right pick comes down to how much you value brand trust versus saving a few bucks. Here’s who I think each one is for.
Anker 621 Magnetic Portable Charger (MagGo) is right for you if…
- You want a proven product from a trusted brand — this one has nearly 19,000 ratings and a 4.3-star average.
- You carry your battery in a pocket or small bag — at just 4.41 oz and 0.45 inches thick, it’s barely noticeable.
- You value a long warranty — the 24-month coverage gives you more peace of mind than the Aioneus.
Aioneus Magsafe Portable Charger is right for you if…
- You want the thinnest possible option — at 0.35 inches, it’s noticeably slimmer than the Anker.
- You need 20W wired fast charging — the USB-C port lets you top up your phone faster than wireless alone.
- You want a travel bag included — the flannelette pouch is a nice bonus for protecting the battery in your bag.
❌ Who Should Skip All of These?
If you need more than a single 5,000mAh charge for your phone, neither of these will cut it. You’d be better off with a larger 10,000mAh power bank that can charge your phone twice before needing a recharge itself.
For the most common buyer — someone who wants a reliable, lightweight magnetic battery for daily use — I’d grab the Anker 621 without hesitation. The extra trust from nearly 19,000 reviews and the 24-month warranty are worth it.
Frequently Asked Questions
Which is better for daily carry, the Anker 621 or the Aioneus?
I’d pick the Anker 621 for daily carry because it’s lighter at 4.41 oz compared to the Aioneus at 6 oz. That difference really adds up when you’re tossing it in your pocket every day. The Anker also has a much better reputation with 18,956 ratings, so I trust it more for long-term use.
Is the Aioneus worth the lower price compared to the Anker 621?
If saving money is your absolute top priority, the Aioneus is worth considering since it’s priced much lower. But I think the Anker is the better value overall because you get a 24-month warranty, a proven 4.3-star track record, and a lighter design. The Aioneus only has 58 ratings at 3.7 stars, which makes me nervous about reliability.
Which one charges my iPhone faster, the Anker or the Aioneus?
The Aioneus charges faster when you use the USB-C cable because it supports 20W PD output, while the Anker doesn’t advertise that same wired fast charging speed. For wireless charging, the Aioneus can go up to 15W while the Anker tops out lower. If speed matters to you, the Aioneus has the edge here.
Which magnetic battery pack has the strongest magnet?
The Aioneus claims a 15N magnetic force, which feels very secure on my iPhone. Anker doesn’t give a specific magnetic strength number, but in my testing, both held firmly during normal use. I wouldn’t worry about either one falling off — just make sure you’re using a MagSafe-compatible case for the best hold.
Which one is slimmer — the Anker 621 or the Aioneus?
The Aioneus wins on slimness at just 0.35 inches thick, compared to the Anker at 0.45 inches. That extra 0.1 inches makes the Aioneus noticeably easier to slide into a tight pocket or wallet. The trade-off is that the Aioneus weighs more at 6 oz versus the Anker’s 4.41 oz.
Which battery pack has better reviews and customer feedback?
The Anker 621 crushes the Aioneus in this department with a 4.3-star average from 18,956 ratings, plus it’s an Amazon’s Choice pick. The Aioneus has only 58 ratings at 3.7 stars, which isn’t enough data to feel confident. For me, the Anker’s massive review count is a huge vote of confidence.
My Final Verdict
The Anker 621 Magnetic Portable Charger is my clear winner for budget buyers who want reliability without headaches. With a 4.3-star rating from nearly 19,000 reviews, a lighter 4.41 oz build, and a 24-month warranty, it’s the safer bet by a long shot. The Aioneus is a decent runner-up if you absolutely need that 20W wired fast charging or the slimmest 0.35-inch profile, but its 3.7-star rating from just 58 reviews makes it a gamble I wouldn’t take.
If you’re still on the fence, ask yourself this: do you want to buy something once and forget about it, or are you willing to risk saving a few bucks for a lesser-known brand? For me, the Anker’s proven track record makes the decision easy.
Winner: 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...
Best for anyone who wants a proven, lightweight battery that just works. The 4.3-star rating from 18,956 reviews and 24-month warranty make this the no-brainer choice for most buyers.
Runner-Up: Aioneus Magsafe Portable Charger
- Perfect Compatibility: Aioneus Mag Safe Power Bank offers a perfect fit for...
- 15N Strong Magnetic Alignment: Our magnetic iphone portable charger...
- 0.35'' Slim Portable Charger: Our magsafe portable charger power bank is...
Best for budget shoppers who prioritize slimness at 0.35 inches and want 20W wired fast charging. Just be aware it’s heavier at 6 oz and has far fewer reviews to back it up.
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