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Guides & Blog

Tips, comparisons and guides for smartphone accessories

Why 10,000 mAh is never 10,000 mAh
wissen·3 min

Why 10,000 mAh is never 10,000 mAh

A number is printed on the power bank, and noticeably less arrives in your phone. That is physics, not fraud. One rule of thumb tells you in ten seconds what is really inside.

September 11, 2026·RPD Redaktion
Apple's September 2026 line-up: the accessories that fit
news·4 min

Apple's September 2026 line-up: the accessories that fit

On 9 September Apple showed five devices: the folding iPhone Duo, iPhone 18 Pro, Apple Watch Series 12 and Ultra 4, and AirPods 5. We do not sell the devices, but the accessories for them, and here is which case, screen protector and power bank actually fit, with release prices in USD and CHF.

September 10, 2026·RPD Redaktion
One cable for everything: when a 3-in-1 cable pays off
ratgeber·3 min

One cable for everything: when a 3-in-1 cable pays off

Three connectors on one lead save space in a bag. They cost charging power, and most of them carry no data. Where the multi-cable shines and where it gets in the way.

September 10, 2026·RPD Redaktion
Swiss plugs abroad: which travel adapter actually fits
ratgeber·3 min

Swiss plugs abroad: which travel adapter actually fits

The Swiss three-pin plug fits surprisingly few sockets. Which countries need which adapter, when voltage matters, and why a single charger saves half your bag.

September 9, 2026·RPD Redaktion
One charging stand for phone, watch and earbuds: worth it?
kaufberatung·3 min

One charging stand for phone, watch and earbuds: worth it?

Three cables on the nightstand, or one stand that takes everything. Sounds simple, but there are three catches: the power adapter, the watch and your case.

September 8, 2026·RPD Redaktion
Magnetic power banks: what they do well, and where they fall short
ratgeber·3 min

Magnetic power banks: what they do well, and where they fall short

It snaps onto the back of your phone and needs no cable. In return, a good third of its energy leaves as heat. Here is what that means in actual charges, and what to check before buying.

September 7, 2026·RPD Redaktion
Privacy Screen Protector: Worth It or Overrated?
ratgeber·5 min

Privacy Screen Protector: Worth It or Overrated?

On the train the person next to you reads along. A privacy filter fixes that — and brings three drawbacks nobody prints on the box.

September 4, 2026·RPD Redaktion
Phone Chain: What Matters in the Strap and the Fixing
kaufberatung·5 min

Phone Chain: What Matters in the Strap and the Fixing

The chain is rarely the problem — the fixing is. Four constructions, and why one of them ends up on the pavement.

September 4, 2026·RPD Redaktion
Phones in Winter: Why the Battery Suddenly Collapses in the Cold
ratgeber·5 min

Phones in Winter: Why the Battery Suddenly Collapses in the Cold

Sixty per cent, a glance at the map, and the phone dies. What really happens in the cold — and why the charge is usually back afterwards.

September 4, 2026·RPD Redaktion
Why Your Phone Loses Charge in the Car Despite the Cable
kaufberatung·5 min

Why Your Phone Loses Charge in the Car Despite the Cable

Navigation on, screen bright, cable plugged in — and the battery still drops. It is almost never the phone's fault.

September 4, 2026·RPD Redaktion
Wallet Case: What to Know Before Putting Cards in Your Phone
kaufberatung·5 min

Wallet Case: What to Know Before Putting Cards in Your Phone

Wallet and phone in one sounds practical. Four things decide whether it still is after three months.

September 4, 2026·RPD Redaktion
Caring for a Leather Case: Patina, Not Wear
ratgeber·5 min

Caring for a Leather Case: Patina, Not Wear

The first scratches look like a bad purchase. On real leather they are the beginning — provided you do not treat it like plastic.

September 4, 2026·RPD Redaktion