iPhone 15 Plus vs iPhone 6: which is better to own and fix?

We compare iPhones the way a repair shop should — not just benchmarks and cameras, but what breaks, what fixes cost, and which chassis is less painful on our bench.

Quick take

Pick iPhone 6 if better repairability and parts story in our shop. Both are Apple phones, so you're still in premium repair territory — but the gap matters when you crack a screen or need a battery.

Spec & repair snapshot

See the comparison table below for release year, chip, display, repairability scores, and the #1 failure we see on each model.

iPhone 15 Plus — shop notes

• Repairability: 4/10
• Parts: good
• Common issues: Battery degradation; Charging port wear; Face ID sensor issues (after drops)
• Full iPhone 15 Plus review · Repair pricing

iPhone 6 — shop notes

• Repairability: 9/10
• Parts: discontinued
• Common issues: Battery degradation; Charging port wear; Home button / Touch ID failures
• Full iPhone 6 review · Repair pricing

Generation gap

iPhone 15 Plus (2023) vs iPhone 6 (2014) — 9 years apart. That usually means a meaningful chip bump and longer software support for the newer phone — but also higher used-market price.

Which should you buy used?

1. Check battery health (Settings → Battery) before either model.
2. Ask about prior screen or back glass work — quality varies by shop.
3. Compare our repair prices for the exact failure you're worried about.

If you're cross-shopping within the same generation (e.g. Pro vs standard), repair costs often differ more than performance for typical users.

Repair cost & downtime (shop perspective)

| Factor | iPhone 15 Plus | iPhone 6 | |--------|----------------|----------------| | Repairability | 4/10 | 9/10 | | Parts availability | good | discontinued | | Typical first shop visit | Battery degradation | Battery degradation |

These are qualitative scores from our Seattle benches — not Apple specs. Higher repairability usually means lower labor surprise when something common breaks.

Software & resale runway

iPhone 15 Plus (2023) will generally outlast iPhone 6 (2014) on iOS updates and resale interest, but the used price gap often swallows that advantage. If both phones are already several years old, condition and repair history matter more than generation gap.

Who should pick which?

• Choose iPhone 15 Plus if you prioritize value and simpler repairs and accept slightly higher repair labor vs the alternative.
• Choose iPhone 6 if you prioritize value and simpler repairs and the used price fits your budget after a realistic repair cushion.

We link full single-device reviews above when you want depth on one model only.