GADGIFYR
FCSWEET Rechargeable Self-Stirring Mug
Auto-mixing coffee mug with magnetic stir and USB charging – 14oz (414 ml)
The FCSWEET Self-Stirring Mug is a 14oz (414 ml) rechargeable beverage cup that automatically mixes liquids with a magnetic stirrer. Designed for convenience and novelty, it blends coffee, tea, cocoa, protein powders, and more at the push of a button.
With a magnetic USB charger, waterproof construction, and a stainless steel interior, this mug caters to anyone looking for a more hands-free drink preparation experience - whether at home, in the office, or on the go.

Work & Focus

Home & Living
Full Review & Insights
This self-stirring mug is built for modern convenience, combining a magnetic stir mechanism with a USB rechargeable battery, eliminating the need for disposable batteries. It includes two magnetic stir bars that attach securely to the cup’s base, ensuring consistent blending performance across different drinks. The stirring function is activated via a button on the handle and runs for 30 seconds per cycle, enough for most mixing needs without splashing.
Constructed from food-grade ABS plastic with a 304 stainless steel interior, the mug maintains heat better than a typical cup, although it’s not actively heated. The double-wall design helps keep beverages warm while protecting hands from heat. Cleaning is simple - rinse with water (not dishwasher safe) and detach the stir bar as needed.
A standout feature is the magnetic charging system, offering safer, more reliable power-up without exposed ports. The charge holds for dozens of uses, making it well-suited to daily routines. However, the lid doesn’t seal tightly, leading to occasional leaks during transport.
The mug’s base is too wide for some cup holders, and durability can be a concern, with reports of performance declining after several months of use.
Travel
Relax
Food
What We Love
✅ Easy USB magnetic charging
✅ Strong, consistent stir function
✅ Durable stainless steel interior
✅ Includes two stir bars
✅ Simple, push-button operation
Where It Falls Short
❌ Lid doesn’t seal tightly
❌ Not dishwasher safe
❌ Bulky base for car holders
❌ Long-term durability varies
Applications & Real-World Use
☕ Morning Coffee Mixing:
Ideal for blending coffee with creamers, powders, or oils quickly. No spoon needed, just press the button and sip a smooth, evenly mixed cup.
🏋️ Protein Shakes at the Gym:
Great for mixing light to medium protein powders or supplements. Perfect for pre- or post-workout drinks without needing a blender or shaker bottle.
🧉 Desk Companion for Office:
Eliminates the mess of manual stirring during work hours. Fits nicely on a desk and adds a touch of novelty to the daily coffee routine.
🧳 Travel Mug Substitute:
Useful during commutes or hotel stays, though not ideal for bumpy travel due to the loose lid. Still, a compact and lightweight tool for portable mixing.
🍫 Cocoa and Warm Milk Prep:
Especially helpful for making consistent hot chocolate, no clumps of powder and no dirty spoons. The 30-second auto stir ensures a smooth finish.

Our Take on the Product
This self-stirring mug offers practical utility with its rechargeable, hands-free mixing. It's ideal for light powder drinks like coffee, protein shakes, or tea-based mixes, especially in office or home settings.
The stainless interior adds durability, while magnetic charging enhances ease of use. However, the leaky lid and wide base limit its portability, and some buyers may encounter issues with longevity.
Best for those who value novelty and quick prep more than rugged build quality or travel compatibility.
Gadgify Score
A smart mug for quick mixing, though not perfect for travel.
4.6
Build Quality & Materials
ABS Plastic: Exterior shell and handle
304 Stainless Steel: Inner cup lining
Silicone: Lid gasket and seal ring
Dimensions
Length: 8.8 cm (= 3.46 inch)
Width: 8.8 cm (= 3.46 inch)
Height: 13.3 cm (= 5.24 inch)
Related Technology & Science
Efficient
Functional
Reliable
Quality
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Build Quality & Materials
ABS Plastic: Exterior shell and handle
304 Stainless Steel: Inner cup lining
Silicone: Lid gasket and seal ring
Dimensions
Length: 8.8 cm (= 3.46 inch)
Width: 8.8 cm (= 3.46 inch)
Height: 13.3 cm (= 5.24 inch)
Gadgify Score
A smart mug for quick mixing, though not perfect for travel.
Applications & Real-World Use
☕ Morning Coffee Mixing:
Ideal for blending coffee with creamers, powders, or oils quickly. No spoon needed, just press the button and sip a smooth, evenly mixed cup.
🏋️ Protein Shakes at the Gym:
Great for mixing light to medium protein powders or supplements. Perfect for pre- or post-workout drinks without needing a blender or shaker bottle.
🧉 Desk Companion for Office:
Eliminates the mess of manual stirring during work hours. Fits nicely on a desk and adds a touch of novelty to the daily coffee routine.
🧳 Travel Mug Substitute:
Useful during commutes or hotel stays, though not ideal for bumpy travel due to the loose lid. Still, a compact and lightweight tool for portable mixing.
🍫 Cocoa and Warm Milk Prep:
Especially helpful for making consistent hot chocolate, no clumps of powder and no dirty spoons. The 30-second auto stir ensures a smooth finish.
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