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Practical advice on buying refurbished iPhones, caring for your device, and getting more from Rainbowmobile.

SIM tray and nano-SIM beside an iPhone
Refurbished iPhoneSetupUnlocked

"SIM not supported" or "No Service": what to check on a new-to-you iPhone

Four messages, four different causes. Here is what each one means on a new-to-you iPhone, the checks that fix most cases in minutes, and when to get in touch.

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Refurbished iPhones prepared for a business team
Buying guideRefurbished iPhoneWholesale

Refurbished iPhones for a business: buying for a team

Refurbished iPhones suit staff phones well. Here is how to choose one model, handle SIMs, Activation Lock and device management, and order ten or more of the same phone.

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An older person holding a big-screen iPhone
Buying guideModel guideSetup

The best iPhone for older parents, and the settings to switch on

A bigger screen helps, but weight matters too. Here is how to choose an iPhone for an older parent, and the safety and accessibility settings to set up before you hand it over.

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A child holding a first iPhone in a protective case
Buying guideModel guideSetup

Choosing a first iPhone for a child, and setting up Screen Time

An iPhone 11, 12 or 13 makes a sensible first phone. Here is how to choose between them, protect it, and set up Family Sharing, Screen Time and Find My before you hand it over.

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iPhone charging overnight on a bedside table
BatterySetupWarranty

How to make your iPhone battery last longer

Two different goals: getting through today, and keeping the battery healthy for years. Here are the settings and habits that help with both.

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Close-up of iPhone camera lenses
Buying guideComparisonModel guide

Which iPhone has the best camera? iPhone 11 to 15 compared

From 12 MP on the iPhone 11 to 48 MP and a 3x zoom on the iPhone 15 Pro: what each camera upgrade actually changes, and which model suits the photos you take.

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Comparing iPhone battery life across models
BatteryComparisonModel guide

Which iPhone has the best battery life? iPhone 11 to 15 compared

Apple's own battery figures for every model from the iPhone 11 to the iPhone 15 Pro, ranked, and what they mean once a phone has been used.

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Refurbished iPhone being tested on a workshop bench
Buying guideRefurbished iPhoneWarranty

How we check a refurbished iPhone before it ships

Every iPhone we sell goes through the same checks before it leaves. Here is exactly what they cover, and the two things no checklist can promise.

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Refurbished phones in different cosmetic grades lined up
AirPodsBuying guideCondition grades

Grade A, B and C: what refurbished grade letters mean

Grade B at one shop is not always Grade B at the next. Here is what the common letters and words usually mean, how to compare them, and where our own grades sit.

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