iPhone 16 Pro Max vs OnePlus Open

iPhone 16 Pro Max

Apple

8.7

Battery king, best iPhone, incremental

OnePlus Open

OnePlus

8.7

Best book-style foldable of 2023 — thinner, lighter, better cameras than Z Fold 5

iPhone 16 Pro Max

What Reviewers Agree On

Battery life is the best of any flagship — reviewers and a robotic battery test repeatedly rank it first, easily a full heavy day with hours to spare.
It's the best iPhone Apple had produced — a maxed-out feature set in a barely-wider body than the 15 Pro Max.
The A18 Pro is the standout for sustained gaming: ~20% faster than the 15 Pro and Galaxy S24 Ultra after a 20-minute stress test, holding 120fps stably for 90+ minutes.
The 48MP main is the best iPhone camera for stills Apple had made, with superb 4K/120fps video and best-in-class four-mic audio.
Long-term durability and battery health are excellent — many owners report 96–100% battery health and minimal wear after a year.

Deal Breakers

Pros & Cons

iPhone 16 Pro Max

Pros

Battery life is the best of any flagship — reviewers and a robotic battery test repeatedly rank it first, easily a full heavy day with hours to spare.
It's the best iPhone Apple had produced — a maxed-out feature set in a barely-wider body than the 15 Pro Max.
The A18 Pro is the standout for sustained gaming: ~20% faster than the 15 Pro and Galaxy S24 Ultra after a 20-minute stress test, holding 120fps stably for 90+ minutes.
The 48MP main is the best iPhone camera for stills Apple had made, with superb 4K/120fps video and best-in-class four-mic audio.

Detailed Comparison

Battery & Charging

iPhone 16 Pro Max

The headline strength: a ~4,685mAh battery delivering the best flagship endurance reviewers had measured — undercut by slow charging.

Battery life is the best of any flagship phone in the last few years — extremely efficient.
In a robotic intensive battery test, the iPhone 16 Pro Max beat all the competition.
Even after a year of daily use it still measured 100% battery health and reached 10h07m screen-on-time in a 7-phone drain test (best result observed: 12h44m on iOS 18.3.2).
It charges slowly: ~39% in 30 min and a full charge in ~2h03m, versus a Galaxy S25 Ultra's 1h17m.
Max wired charge is only ~30W and Apple doesn't even sell a 30W adapter (you must buy the 40W one); MagSafe is 25W.

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OnePlus Open

What Reviewers Agree On

Best book-style foldable hardware of 2023 — thinner (5.8mm unfolded), lighter (245g) than Z Fold 5 (253g)
Cover screen aspect ratio (20:9) finally works like a real phone, unlike Z Fold 5's narrow 23.1:9
Inner display crease is meaningfully less visible than the Z Fold 5's — most-praised hinge design of the era
Hasselblad triple cameras (48MP main + 64MP 3x telephoto + 48MP ultrawide) outshoot the Z Fold 5 noticeably
67W wired + 50W wireless charging — dramatically faster than Z Fold 5's 25W wired / no wireless
OxygenOS Open Canvas multitasking — best foldable software outside Samsung One UI

Deal Breakers

IPX4 water resistance only — no dust rating; Z Fold 5 has IPX8 (full water immersion)
Only 4 OS + 5 years of security — short vs Pixel Fold's 7 years
No S Pen support — Samsung Z Fold 5's biggest software advantage
Alert Slider is missing from this OnePlus model (only foldable without it)
$1,699 launch was 'less expensive than Z Fold 5 by $100' but still steep for a first-gen foldable

OnePlus Open

Pros

Best book-style foldable hardware of 2023 — thinner (5.8mm unfolded), lighter (245g) than Z Fold 5 (253g)
Cover screen aspect ratio (20:9) finally works like a real phone, unlike Z Fold 5's narrow 23.1:9
Inner display crease is meaningfully less visible than the Z Fold 5's — most-praised hinge design of the era
Hasselblad triple cameras (48MP main + 64MP 3x telephoto + 48MP ultrawide) outshoot the Z Fold 5 noticeably
67W wired + 50W wireless charging — dramatically faster than Z Fold 5's 25W wired / no wireless
OxygenOS Open Canvas multitasking — best foldable software outside Samsung One UI

Cons

IPX4 water resistance only — no dust rating; Z Fold 5 has IPX8 (full water immersion)
Only 4 OS + 5 years of security — short vs Pixel Fold's 7 years
No S Pen support — Samsung Z Fold 5's biggest software advantage
Alert Slider is missing from this OnePlus model (only foldable without it)
$1,699 launch was 'less expensive than Z Fold 5 by $100' but still steep for a first-gen foldable

Value & Verdict

iPhone 16 Pro Max

At $1,199 (128GB) it's the best iPhone of its year and ages superbly, but it's an incremental upgrade with stingy base storage.

It's the best iPhone Apple has produced yet and the one to get for a maxed-out feature set.
For most people this is the best phone — Samsung and Google really need to step it up.
It's terrific but an incremental update to its predecessor with little in the way of useful new features.
Base storage still starts at 128GB at $1,199 — a downgrade from the 15 Pro Max's 256GB minimum.
Owners who upgraded from older models call it 'the BEST iPhone yet' and one of their favourite iPhones of all time.
In 2026 it still feels current — an older product that holds up, though the aluminium-free titanium ages better than rivals' finishes.

OnePlus Open

$1,699 launch — $100 less than Z Fold 5's $1,799 and meaningfully better hardware. Best book-style foldable of 2023 per The Verge/Engadget; Samsung wins on water resistance and S Pen.

Launched at $1,699 — $100 less than Z Fold 5's $1,799. Aggressive pricing for the best book-style foldable hardware of 2023.
At $900-1200 used in 2026 — the OnePlus Open is the smart book-foldable buy for camera + multitasking buyers, with Galaxy Z Fold 7 ($2K) makes the Open look even better value.
Engadget verdict: 'best book-style foldable of 2023' — thinner, lighter, better cameras and faster charging than Z Fold 5.
vs Samsung Galaxy Z Fold 5 ($1,799): OnePlus wins on cameras, weight/thinness, hinge crease, charging speed; Samsung wins on IPX8, S Pen, longer foldable track record.
vs Pixel Fold ($1,799): OnePlus wins on cameras + multitasking + faster charging; Pixel wins on 7-year update commitment.