Four rechargeable gadgets that actually solve something.
A mini electric juicer, two self-stirring mugs, and a USB shaker bottle — compared on capacity, power, and price, so you know exactly what you're getting before you buy.
How the four stack up
Specs and pricing pulled directly from the Problems Solved product listings.
| Gadget | Price | Capacity / size | Power source | Best for |
|---|---|---|---|---|
| Mini Crushed Ice Electric Juicer | £19.99£24.99 | 450ml | Rechargeable / cordless | Smoothies, ice, on-the-go juiceTop pick |
| Self Stirring Coffee Mug | £11.99£15.89 | 300–400ml | Rechargeable | Desk coffee & tea |
| Electric Protein Shaker Bottle | £13.99£21.99 | 105×86×190mm | USB rechargeable, 2.2W motor | Gym & protein shakes |
| Electric Coffee Self Mixing Mug | £14.99£15.99 | 380ml | Rechargeable, IPX67 waterproof | Travel & outdoor use |
Four gadgets, four different jobs
Each one solves a specific everyday problem rather than competing head-to-head.
Mini Crushed Ice Electric Juicer
Ice & smoothiesA cordless, rechargeable mini blender built for crushed ice, fruit, and quick smoothies. The 450ml cup is sized for a proper single serving, and the digital display keeps operation to one-touch simple.
Good for
- Crushing ice and blending soft or frozen fruit
- Charging anywhere — no cord needed to use it
- Digital display for simple one-touch control
Keep in mind
- Best with crushed ice and soft chunks, not whole cubes
- 450ml suits single servings, not batch blending
Rechargeable Self Stirring Coffee Mug
Desk essentialPress a button and the built-in stirrer mixes coffee, tea, or protein powder evenly, with no spoon required. The stainless steel interior keeps drinks fresh and is easy to wipe clean between uses.
Good for
- Mixing coffee, tea, or powders at the push of a button
- Stainless steel interior that's easy to clean
- Compact enough for an office desk
Keep in mind
- Stirs on command rather than sensing when a drink is mixed
- Needs occasional recharging with daily use
Electric Protein Shaker Bottle
Gym bagA USB-rechargeable shaker with a small 2.2W motor that mixes protein powder into a lump-free shake without the need to manually shake anything. The slim 105×86×190mm shape slides easily into a gym bag.
Good for
- Lump-free protein shakes with no manual shaking
- Slim, compact shape for a gym bag
- Charges over USB from any power source
Keep in mind
- Small motor suits powders, not thick or frozen blends
- Motor base should be kept away from water
Electric Coffee Self Mixing Mug
Travel & outdoorsLike the stirring mug above, but built for tougher conditions: it adds a real-time temperature display so you know exactly how hot your drink is, plus leakproof, IPX67 waterproof construction for travel and outdoor use.
Good for
- Checking drink temperature without guessing
- Leakproof, waterproof build for travel and outdoors
- Choice of four colours
Keep in mind
- Stirs and displays temperature, but doesn't heat drinks itself
- Needs recharging like any battery-powered gadget
What to check before you buy a rechargeable gadget
Three questions that apply to any small electric gadget, not just the four above.
How is it charged?
All four gadgets here charge over USB rather than needing disposable batteries, which is worth checking for any similar product — it saves money and hassle over time.
What's the capacity or size?
Match the capacity to how you'll actually use it: 450ml suits a full smoothie, 300–400ml suits a single coffee, and a slim shaker suits a gym bag rather than a desk.
Where will you use it?
If it's going outdoors or into a bag daily, look for waterproofing and leakproof seals. If it's staying on a desk, that matters far less.
Common questions
Are these gadgets rechargeable or do they need batteries?
All four run on a rechargeable built-in battery, so there are no disposable batteries to buy. Charging is USB-based, which means you can top them up from a laptop, power bank, or wall adapter.
Will the mini juicer handle whole ice cubes?
It's built for crushed ice, soft fruit, and smoothie-style blends rather than whole hard ice cubes straight from the tray. Adding a splash of liquid helps it work through frozen fruit more evenly.
How do the self-stirring mugs know when to stop?
Both mugs stir at the press of a button rather than automatically detecting when a drink is mixed, so you control how long the stirring runs.
Is the shaker bottle dishwasher-safe?
The shaker bottle's cup and lid are designed for hand washing with the motor base kept dry, since it houses the rechargeable battery and motor.