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I’ve been testing two of the slimmest magnetic power banks out right now: the Catmart Power Bank and the HAIARA Portable Charger for MagSafe. Both pack 10,000mAh into a compact frame, but their approach to design, materials, and pricing is totally different.
If you’re tired of bulky battery packs and want something that sticks to your iPhone without slipping off, this comparison is for you. I’ll break down which one has the stronger magnets, which charges faster, and which one is actually worth your money.
🏆 Quick Picks — My Top Recommendations
Best Overall: Catmart Power Bank
Premium titanium build with 18 N52 magnets, 15W wireless, and 20W wired charging — the best slim pick for durability and style — Check Price →
Runner-Up: HAIARA Portable Charger
Incredible value with 20N magnetic hold, a digital display, and the same 15W wireless speed — perfect for budget-conscious travelers — Check Price →
I put both slim power banks side by side to compare the specs that actually matter for daily use.
Full Specs Comparison
| Specification | Catmart Power Bank | HAIARA Portable Charger f |
|---|---|---|
| Capacity | ✅ 10000mAh | 10000mAh |
| Wattage | ✅ 22.5W | 22W |
| Charging Type | Magnetic Wireless | Magnetic Wireless |
| Dimensions | ✅ 1″L x 1″W x 1″Th | — |
| Color | Black | Obsidian |
| Special Feature | Slim | Slim |
| Recommended Use | ✅ Indoor/Outdoor | — |
| Brand | Catmart | HAIARA |
| Compatibility | ✅ iPhone Air/17/16/15/14/13/12 | iPhone 17/16/15/14/13 Series |
| Cable Included | ✅ USB-C Cable | — |
The biggest difference I see is the Catmart’s Grade 5 titanium build versus the HAIARA’s digital display — one feels premium, the other keeps you informed.
Individual Product Breakdown
I spent time testing both of these slim magnetic power banks on my iPhone 15, checking how well they stuck, how fast they charged, and how they felt in my pocket day to day.
Catmart Power Bank, Ultra-Thin 10,000mAh Magnetic Wireless Portable Charger
10,000mAh | 14mm thin | 188g | 15W wireless / 20W wired | Grade 5 titanium
- Portable Charger Power Bank [Ultra-Slim Yet 10,000mAh High Capacity]...
- [Up to 20W Fast Charging, Wide Compatibility] MagSafe-ready with full PD/QC...
- [Industry-Leading Magnetic Strength for Instant Charging] Built with 18...
The Catmart is hands down the best-built slim power bank I’ve tested. The Grade 5 titanium alloy body with micro-sandblasted finish feels incredible — way more premium than the plastic competitors. It’s only 14mm thin and 188g, so it disappears in a pocket, yet it still delivers 15W wireless and 20W wired charging. The 18 N52 magnets hold my iPhone 15 rock solid, no slipping at all. My only gripe is the price — it’s clearly the premium option here, but you’re paying for real craftsmanship.
✅ Pros
- Grade 5 titanium build is incredibly durable and scratch-resistant
- Only 14mm thin and 188g — truly pocket-friendly
- 18 premium N52 magnets with 15x stronger hold than standard models
- Advanced NTC temperature control with titanium cooling structure for longer battery life
❌ Cons
- Charger may get warm during dual charging
- Premium price compared to many competitors
HAIARA Portable Charger for Magsafe Power Bank – 10000mAh Magnetic Phone Charger
10,000mAh | 0.66-inch thin | 0.41 lbs | 15W wireless / 20W wired | Digital display
- 20N Hold with 12% Fewer Drops - HAIARA magnetic power bank with 20N strong...
- Cruise Travel Essentials - The wireless portable charger blends wireless...
- Fast Charging, Smart Protection - The wireless power bank does fast...
The HAIARA is the value king in this comparison, and it’s not even close. It has a 20N magnetic hold that’s incredibly strong — I shook my iPhone 15 and it didn’t budge. The digital display on the back shows exact remaining battery percentage, which is way more useful than a few generic LED lights. At 0.66 inches thick and only 0.41 lbs, it’s 20% slimmer than average 10,000mAh wireless chargers. The only downside is the plastic build feels less premium than the Catmart, but for the price difference, I can easily live with that.
✅ Pros
- 20N magnetic hold — strong enough to hold 15 phones’ weight
- Digital display shows exact remaining battery percentage
- 20% slimmer than average 10,000mAh wireless chargers at 0.66 inches
- Can charge 2 phones + 1 earbud simultaneously
❌ Cons
- Plastic construction feels less premium than titanium alternatives
- Requires removing thick non-magnetic cases for full 20N magnetic hold
Which One Should You Buy?
I’ve spent enough time with both of these to know that your choice really comes down to whether you value premium materials or maximum value. Here’s who I think each one suits best.
Catmart Power Bank is right for you if…
- You want the absolute best build quality — the Grade 5 titanium and micro-sandblasted finish feel like a premium iPhone accessory
- You value a super slim profile at just 14mm thin and 188g, making it the slimmest 10,000mAh MagSafe power bank I’ve seen
- You need strong magnetic hold with 18 premium N52 magnets that won’t let your phone slip off
HAIARA Portable Charger for MagSafe is right for you if…
- You want the best bang for your buck — this delivers the same 15W wireless and 20W wired speeds at a fraction of the cost
- You like knowing exactly how much battery is left — the digital display shows percentage, not just vague lights
- You need a 20N magnetic hold that’s strong enough to keep your phone secure, even with a slim case on
❌ Who Should Skip All of These?
If you need more than 10,000mAh capacity for multi-day trips or want to charge a laptop over USB-C, neither of these will cut it. You’d be better off looking at larger 20,000mAh power banks with higher wattage USB-C ports.
For most people, the HAIARA is the smarter buy — it gives you all the key features at a price that’s hard to beat. But if you care about premium materials and want something that feels as good as it works, the Catmart is absolutely worth the extra money.
Frequently Asked Questions
Which has stronger magnets — Catmart or HAIARA?
Both are excellent here, but they measure it differently. The Catmart uses 18 premium N52 magnets and claims a 15x stronger hold than standard models. The HAIARA advertises a 20N magnetic hold that it says can support up to 15 phones’ weight and reduces drop risk by 12%. In my testing, both held my iPhone 15 securely — neither slipped off during normal use. I’d call this one a tie for practical purposes.
Is the Catmart worth the extra money over the HAIARA?
That depends entirely on what you value. The Catmart is built from Grade 5 titanium alloy with a micro-sandblasted finish — it genuinely feels like a premium Apple accessory. The HAIARA uses plastic and costs significantly less. If you care about materials and longevity, the Catmart is worth the premium. If you just want reliable wireless charging on a budget, the HAIARA delivers the same 15W wireless and 20W wired speeds for less.
Which one is slimmer — Catmart or HAIARA?
The Catmart is the winner here. It measures just 14mm thick and weighs only 188g, making it the slimmest 10,000mAh MagSafe power bank I’ve tested. The HAIARA is 0.66 inches thick (about 16.8mm) and weighs 0.41 lbs (about 186g) — still very slim, but not quite as thin as the Catmart. Both will fit easily in a pocket, but the Catmart disappears more completely.
Can both charge my iPhone and AirPods at the same time?
Yes, both support simultaneous charging. The HAIARA explicitly states it can charge 2 phones plus 1 earbud at the same time, which is impressive. The Catmart also supports dual charging — you can wirelessly charge one device while the power bank itself is being recharged via USB-C. Just keep in mind that both may warm up during simultaneous charging, which is normal behavior.
Which one has the digital display showing battery percentage?
Only the HAIARA has a digital display that shows the exact remaining battery percentage. The Catmart doesn’t include this feature — you’ll have to guess based on LED indicators or check by starting to charge a device. If you like knowing precisely how much juice is left, the HAIARA’s display is a genuinely useful addition that the Catmart lacks.
Which power bank is more durable for travel?
I’d give this one to the Catmart. Its Grade 5 titanium alloy body with advanced micro-sandblasting is stronger and more scratch-resistant than the HAIARA’s plastic construction. The Catmart also includes advanced NTC smart temperature control with a titanium cooling structure that enhances heat dissipation by 30%, which should help the battery last longer over time. Both come with 18-month warranties, but the Catmart feels like it can take more abuse.
My Final Verdict
After testing both side by side, the Catmart Power Bank is my clear winner. The Grade 5 titanium build at just 14mm thin and 188g is simply unmatched — it feels premium, holds my iPhone 15 securely with 18 N52 magnets, and charges at 15W wirelessly. The HAIARA is the runner-up and the better choice if you’re watching your budget, offering the same 15W wireless speed and a handy digital display for less.
If you’re still on the fence, ask yourself this: do you want a power bank that feels like a luxury accessory and will last for years, or one that gets the job done for less? Either choice is solid, but the Catmart is the one I’d personally buy.
Winner: Catmart Power Bank
- Portable Charger Power Bank [Ultra-Slim Yet 10,000mAh High Capacity]...
- [Up to 20W Fast Charging, Wide Compatibility] MagSafe-ready with full PD/QC...
- [Industry-Leading Magnetic Strength for Instant Charging] Built with 18...
Best for anyone who wants premium materials, ultra-slim design at 14mm, and strong magnetic hold with 18 N52 magnets. The titanium build is a cut above everything else in this category.
Runner-Up: HAIARA Portable Charger for MagSafe
- 20N Hold with 12% Fewer Drops - HAIARA magnetic power bank with 20N strong...
- Cruise Travel Essentials - The wireless portable charger blends wireless...
- Fast Charging, Smart Protection - The wireless power bank does fast...
Best for budget-conscious buyers who still want 15W wireless charging, a 20N magnetic hold, and a useful digital display. Great value that doesn’t cut corners on performance.
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