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Anker 621 MagGo Power Bank vs UGreen MagFlow Magnetic Power Bank

Buy the Anker 621 MagGo if you want the smallest, lightest magnetic pack that disappears in a pocket and you only need one top-up for your iPhone. Buy the UGreen MagFlow if you want more capacity, faster Qi2 wireless charging and a built-in cable that also charges Android phones and small accessories. The Anker is the more polished, proven design and its 4.6 rating from 296 owners reflects that; the UGreen wins on raw capability and flexibility.

  • Choose the Anker 621 MagGo if you want a pocket-sized MagSafe pack for a single iPhone top-up and value a slim, proven design over capacity.
  • Choose the UGreen MagFlow if you need two to three phone charges, 25W Qi2 wireless speed and a built-in USB-C cable for wired charging.

Prices

  • Anker 621 MagGo Power Bank: $15.00 at eBay (last seen Nov 12)
  • UGreen MagFlow Magnetic Power Bank: $64.99 at Best Buy (checked today)
  • Difference: the Anker 621 MagGo Power Bank is $49.99 cheaper than the UGreen MagFlow Magnetic Power Bank at the latest prices (Nov 12 and Nov 14)
Anker
Anker 621 MagGo Power Bank (5,000mAh)

Anker 621 MagGo Power Bank

Anker 621 MagGo Power Bank (5,000mAh)

4.6(296 ratings)
$15.00at eBayChecked Nov 12
See all prices and details
Visit eBay

Store links may earn us a commission.

Pros
  • Very slim and light for a magnetic pack
  • Strong owner rating from a large pool of reviews
  • Simple snap-on MagSafe use with no cable needed
  • MultiProtect safety and multiple regional certifications
Cons
  • Only one full phone charge
  • 12W wireless is slower than Qi2 packs
  • Single USB-C port with modest wired output
  • No cooling hardware for sustained fast charging
UGreen
UGreen MagFlow Magnetic Power Bank 10,000mAh Qi2 25W

UGreen MagFlow Magnetic Power Bank

UGreen MagFlow Magnetic Power Bank 10,000mAh Qi2 25W

$64.99at Best BuyChecked 9 h ago
See all prices and details
Visit Best Buy

Store links may earn us a commission. Price via Klarna.

Pros
  • Double the capacity of the Anker
  • 25W Qi2 wireless is noticeably faster
  • Built-in USB-C cable plus a second port
  • Charges three devices at once with active cooling
Cons
  • Bulkier and heavier in the pocket
  • Shorter review history than the Anker
  • Built-in cable adds a wear point
  • More capacity means longer time to recharge itself

What separates them

Anker 621 MagGo Power BankUGreen MagFlow Magnetic Power Bank
Capacity5,000mAh, roughly one iPhone charge10,000mAh, roughly two to three iPhone charges
Wireless speedUp to 12W MagSafe-style chargingUp to 25W Qi2 wireless charging
Wired outputOne USB-C port, 12W maxUSB-C port plus built-in USB-C cable, up to 30W
Size and weight4.13 x 2.62 x 0.45 inches, MiniCell design, very lightLarger and heavier to hold the bigger cell and heat sink
Heat managementMultiProtect safety circuitry, no active coolingMetal heat sink and smart cooling system
Devices at onceOne device at a timeUp to three devices at once
Phone compatibilityMagnetic wireless aimed at iPhone 12 and laterQi2 magnetic for iPhone, wired cable for Android and accessories
Owner feedback4.6 out of 5 from 296 ratingsNewer model with a shorter track record

Price history

$64.99$15.00
Oct 31Nov 14
  • Anker 621 MagGo Power Bank: lowest $15.00 on Nov 11 at eBay; $42.99 on Nov 14.
  • UGreen MagFlow Magnetic Power Bank: lowest $64.99 on Nov 13 at Best Buy; $64.99 on Nov 14.

Prices at every store

Anker 621 MagGo Power Bank

  • WalmartNew

    In stock

    $42.99Checked 15 h ago
    Visit Walmart
  • TargetNew

    In stock

    $42.99Free shippingChecked Nov 13
    Visit Target
  • eBayNew

    In stockShips from Ireland · duties may apply

    $38.58+ $14.21 shippingChecked Nov 9
    Visit eBay
  • eBayNew

    Availability unknown

    $15.00Checked Nov 12
    Visit eBay

Also available at

  • WalmartCheck price at Walmart

Store links may earn us a commission.

All 19 stores and price history →

UGreen MagFlow Magnetic Power Bank

  • Best BuyNew

    In stock

    $64.99Free shippingChecked 9 h ago
    Visit Best Buy

Store links may earn us a commission. Price via Klarna.

Prices and history →

Specs compared

SpecAnker 621 MagGo Power BankUGreen MagFlow Magnetic Power Bank
Charger TypeWireless chargerWireless charger
Power SourceBatteryBattery
Solar PoweredNoNo
Maximum Output12W Max30W MaX (USB-C/C-Cabel Output), 25W (wireless c…
Charging TypeWirelessWireless, Wired
Wireless Charging TypeMagSafeMagSafe, Qi2
Multiple Device ChargingNoYes (3 devices at once)
Charging HighlightsWireless ChargerSmart cooling system, MagSafe-compatible, Metal…
Connector TypeUSB-CUSB-C, Qi
Port TypeUSB-CUSB-C
Ports1 USB-C2 USB-C ports
Cable TypeUSB-CUSB-C cable (Built-in)
Show all 40 specsShow fewer specs
SpecAnker 621 MagGo Power BankUGreen MagFlow Magnetic Power Bank
Output PortsUSB-CUSB-C, C-Cabel
Output Current2.4A3A (PPS: 5-11V)
Output Voltage5 V9V
Wireless Charging TechMagSafeQi2.2
Compatible BrandsAppleApple
Compatible DevicesiPhone 13 Pro, iPhone 12iPhone 17 Pro Max
CertificationsUKCA, BC, PSE MarkQi2.2 certification
Input Voltage5V9V
Input Connector TypeUSB-CUSB-C, C-Cabel

What reviewers say

Anker 621 MagGo Power Bank

  • 4.6 / 5296 ratings

Rated 4.6 out of 5 from 296 ratings, buyers mostly like the magnetic grip and slim size for everyday top-ups. The common gripes are the limited capacity and slower wireless speed compared with a cable.

What people mention
  • Magnet strengthPraisedOwners say the magnets hold the pack firmly to MagSafe iPhones, even in a pocket.
  • CapacityCriticisedBuyers note 5,000mAh only delivers about one partial charge, not a full day of power.
  • Charging speedMixed12W wireless is fine for topping up but slower than wired charging, and some say it feels slow.
  • Size and weightPraisedThe 0.45-inch body is slim enough to leave attached to the phone.
Reviews
  • Best Power Banks 2026: Top portable chargers for smartphones
  • The best MagSafe power banks for your iPhone - Engadget

Questions and answers

Which is better for a full day out?
The UGreen MagFlow. Its 10,000mAh cell covers two to three iPhone charges, while the Anker 621 gives about one. The Anker is the easier one to carry if you only need a top-up.
Which charges an iPhone faster wirelessly?
The UGreen. It supports Qi2 wireless at up to 25W, against 12W on the Anker 621. Both slow down as the phone warms up, but the UGreen has a metal heat sink to hold speed longer.
Can either charge an Android phone?
The UGreen can, through its built-in USB-C cable or its USB-C port. The Anker 621 is aimed at MagSafe iPhones; its single USB-C port can charge other devices by cable but at low output.
Which is easier to carry every day?
The Anker 621. At 0.45 inches thick with Anker's MiniCell design it slips into a pocket, while the UGreen is larger and heavier because of the bigger battery and cooling hardware.
Is the UGreen worth stepping up to over the Anker?
Yes if you charge multiple devices, want faster wireless charging or need more than one phone charge per trip. Stay with the Anker if size and a long track record of owner satisfaction matter more.
Which lasts longer over years of use?
Both use lithium-ion cells that degrade with cycles. The Anker has a longer, well-rated track record; the UGreen's built-in cable is an extra part that can wear. Neither is user-serviceable.

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More comparisons

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  • Anker 621 MagGo Power Bank (5,000mAh) vs Anker MagGo Power Bank (10,000mAh, Qi2)
  • Anker 621 MagGo Power Bank (5,000mAh) vs Iniu SnapGo Air
  • Anker 621 MagGo Power Bank (5,000mAh) vs Anker Zolo Power Bank with Built-in USB-C Cable
  • Anker 621 MagGo Power Bank (5,000mAh) vs Anker Nano Power Bank with Built-in Foldable USB-C Connector

Buying guides that pick them

  • Best Anker power banks
  • Best MagSafe power banks for iPhone
Safety Features
MultiProtect safety technology
—
Input Current2.4A—
Dimensions4.13 x 2.62 x 0.45 inches—
actual_colorblack—
colorBlack—
size4.13" x 2.62" x 0.45"—
ConnectionsUSB-C—
Battery TechnologyLi-Ion—
Charging Time (h)2.0—
Manufacturer ColorBuds Green—
Power Supply (W)12.0—
Depth (")0.45—
TypePowerbank—
Weight (oz)4.6—
FeaturesCompatible, CE Marking, Built-in Wireless Charg…—
Battery Capacity (mAh)5000—
No. of USB-C (pcs)1—
Cable Length (ft)2.0—
BrandAnker—