Head to head

ASUS Zenfone 11 Ultra vs OnePlus Open

OnePlus Open leads 8 to 5 on the 13 rankable specs, but ASUS Zenfone 11 Ultra costs $800 less.

Catalog as of September 1, 2026

Why, in numbers

Weight: ASUS Zenfone 11 Ultra lists 224 g (ASUS sheet, 2026-09-02); OnePlus Open lists 239 g (8.43 oz) (OnePlus sheet, 2026-09-02).
Size: ASUS Zenfone 11 Ultra lists 6.78 inches (ASUS sheet, 2026-09-02); OnePlus Open lists 7.82 inches unfolded (6.31 inches folded) (OnePlus sheet, 2026-09-02).
Chipset: ASUS Zenfone 11 Ultra lists Snapdragon 8 Gen 3 (4 nm) (ASUS sheet, 2026-09-02); OnePlus Open lists Qualcomm Snapdragon 8 Gen 2 (4 nm) (OnePlus sheet, 2026-09-02).
Max optical zoom: ASUS Zenfone 11 Ultra lists 3x optical (30x digital HyperClarity zoom) (ASUS sheet, 2026-09-02); OnePlus Open lists 3x optical zoom (6x in-sensor zoom) (OnePlus sheet, 2026-09-02).
Capacity: ASUS Zenfone 11 Ultra lists 5,500 mAh (ASUS sheet, 2026-09-02); OnePlus Open lists 4,805 mAh (OnePlus sheet, 2026-09-02).

Manufacturer list price, not a live offer. Confirm current pricing before you buy.

Buying for

Every rankable spec counts once. Pick a lens to score only what matters for your phone.

Your devices

Select your ecosystem to flag non-functional features or platform lock-in.

Straight answer

Overall: 5 to 8

Buy the OnePlus Open.

Leads 8 of 13 rankable overall specs; ASUS Zenfone 11 Ultra takes 5.
Size: 7.82 inches unfolded vs 6.78 inches
Resolution: Main: 2440 × 2268 vs 1080 × 2400
ASUS Zenfone 11 Ultra is $800 cheaper. Pay the difference only if size matters to you.

Check first: the OnePlus Open has no headphone jack. the OnePlus Open is not IP68. Tick them under deal-breakers if that rules it out.

5 ASUS Zenfone 11 Ultra13 rankable of 48 specsOnePlus Open 8

Deal-breakers

tick what would make you walk away

No stylusrow
No pen input for handwritten notes or markup.
Trips:ASUS Zenfone 11 Ultra · NoTrips:OnePlus Open · No
No headphone jackrow
Wired headphones need a USB-C dongle.
Clear:ASUS Zenfone 11 Ultra · Yes (3.5 mm Hi-Res audio output)Trips:OnePlus Open · No
No charger in the boxrow
Budget another $20 to $40 for a fast charger.
Trips:ASUS Zenfone 11 Ultra · NoClear:OnePlus Open · Yes (67W SUPERVOOC Power Adapter includ…
Under 5 years of OS updatesrow
Security patches stop sooner and resale value falls faster.
Trips:ASUS Zenfone 11 Ultra · 2 major OS updates + 4 years security p…Trips:OnePlus Open · 4 major Android OS updates & 5 years se…
Not IP68row
Less dust and water protection than an IP68 rival.
Clear:ASUS Zenfone 11 Ultra · IP68 (1.5 m / 30 min)Trips:OnePlus Open · IPX4 splash resistant
No microSD slotrow
Storage is fixed at what you buy.
Trips:ASUS Zenfone 11 Ultra · NoTrips:OnePlus Open · No

At a glance

The handful of numbers that decide most purchases in this category.

5 of 6 differ

Weight

ASUS

224 g

OnePlus

239 g (8.43 oz)

Size

ASUS

6.78 inches

OnePlus

7.82 inches unfolded (6.31 inches folded)

Chipset≠

ASUS

Snapdragon 8 Gen 3 (4 nm)

OnePlus

Qualcomm Snapdragon 8 Gen 2 (4 nm)

RAMsame

ASUS

16 GB LPDDR5X

OnePlus

16 GB LPDDR5X

Max optical zoom≠

ASUS

3x optical (30x digital HyperClarity zoom)

OnePlus

3x optical zoom (6x in-sensor zoom)

Capacity

ASUS

5,500 mAh

OnePlus

4,805 mAh

The 90-Day Owner Regret Check

Documented ergonomic quirks, hardware annoyances, and maintenance realities reported by real owners.

Post-Purchase Truths

ASUS: What to watch for

Hidden Cost
No wall charging adapter included in the retail box.
Packaging contains only a Type-C cable; high-speed wall charging bricks must be purchased separately if you do not already own one.

OnePlus: What to watch for

Hidden Cost
No wall charging adapter included in the retail box.
Packaging contains only a Type-C cable; high-speed wall charging bricks must be purchased separately if you do not already own one.

ASUS Zenfone 11 Ultra$8995 wins

OnePlus Open$1,6998 wins

Body Display Platform Memory Rear camera Front camera Battery & charging Audio Connectivity Features

42 of 48 attributes differ. Identical rows are dimmed.

Body

leads 1-0

Body specifications. Middle column is ASUS Zenfone 11 Ultra, right column is OnePlus Open.
Dimensions	163.8 × 76.8 × 8.9 mm	Unfolded: 153.4 × 143.1 × 5.8 mm / Folded: 153.4 × 73.3 × 11.7 mm
Weight	224 g (wins this row: lower)	239 g (8.43 oz)
Build	Gorilla Glass Victus 2 front, matte glass back, aluminum frame	Aerospace-grade titanium alloy, carbon fiber hinge, glass or vegan leather back
Water / dust rating	IP68 (1.5 m / 30 min)	IPX4 splash resistant
Colors	Skyline Blue, Eternal Black, Misty Grey, Desert Sand	Emerald Dusk, Voyager Black
Stylus	No	No

Display

leads 4-0

Display specifications. Middle column is ASUS Zenfone 11 Ultra, right column is OnePlus Open.
Type	LTPO AMOLED, 144Hz for gaming	Main: 7.82" Flexi-fluid LTPO3 AMOLED / Cover: 6.31" LTPO3 Super Fluid AMOLED
Size	6.78 inches	7.82 inches unfolded (6.31 inches folded) (wins this row: higher)
Resolution	1080 × 2400 (FHD+)	Main: 2440 × 2268 (426 ppi) / Cover: 2484 × 1116 (431 ppi) (wins this row: higher)
Pixel density	~388 ppi	426 ppi main / 431 ppi cover (wins this row: higher)
Refresh rate	1–120 Hz LTPO (up to 144 Hz in Game Genie)	120 Hz (1–120Hz dynamic LTPO3 on both displays)
Peak brightness	2,500 nits peak / 1,600 nits HBM	2,800 nits peak on both displays / 1,400 nits HBM (wins this row: higher)
HDR	HDR10	Dolby Vision, HDR10+, HLG
Protection	Corning Gorilla Glass Victus 2	Ultra Thin Glass (main) / Ceramic Guard (cover)
Always-on display	Yes	Yes

Platform

5 differences

Platform specifications. Middle column is ASUS Zenfone 11 Ultra, right column is OnePlus Open.
Operating system	Android 14 with ZenUI	OxygenOS 14 (Android 14)
Software support	2 major OS updates + 4 years security patches	4 major Android OS updates & 5 years security patches
Chipset	Snapdragon 8 Gen 3 (4 nm)	Qualcomm Snapdragon 8 Gen 2 (4 nm)
CPU	8-core (1× Cortex-X4 + 5× A720 + 2× A520)	8-core (1× Cortex-X3 + 4× Cortex-A715/A710 + 3× Cortex-A510)
GPU	Adreno 750	Adreno 740

Memory

1 differences

Memory specifications. Middle column is ASUS Zenfone 11 Ultra, right column is OnePlus Open.
RAM	16 GB LPDDR5X	16 GB LPDDR5X
Storage	512 GB UFS 4.0	512 GB UFS 4.0
Storage options	256 GB / 512 GB	512 GB
microSD	No	No

Rear camera

leads 2-1

Rear camera specifications. Middle column is ASUS Zenfone 11 Ultra, right column is OnePlus Open.
Main	50 MP Sony IMX890, f/1.9, 24 mm, 6-Axis Gimbal OIS 3.0 (wins this row: higher)	48 MP Sony LYT-T808 (f/1.7, 24mm, 1/1.43", OIS)
Ultrawide	13 MP, f/2.2, 120° free-form lens	48 MP (f/2.2, 14mm, 114° FOV, 3.5cm macro) (wins this row: higher)
Telephoto	32 MP, f/2.4, 3x optical zoom, OIS	64 MP OmniVision periscope (f/2.6, 70mm, 3x optical, 6x in-sensor, OIS) (wins this row: higher)
Max optical zoom	3x optical (30x digital HyperClarity zoom)	3x optical zoom (6x in-sensor zoom)
Stabilization	6-Axis Gimbal OIS on main + OIS on telephoto	OIS on main camera and 3x periscope telephoto
Video	8K 24 fps, 4K 30/60 fps with Gimbal Stabilization	4K at 30/60 fps, Dolby Vision HDR at 4K 30fps

Front camera

leads 1-0

Front camera specifications. Middle column is ASUS Zenfone 11 Ultra, right column is OnePlus Open.
Selfie camera	32 MP RGBW sensor, f/2.5 (wins this row: higher)	Inner: 20 MP / Cover: 32 MP (both 4K video capable)
Selfie video	1080p 30 fps	4K at 30 fps (cover and inner cameras)

Battery & charging

leads 2-1

Battery & charging specifications. Middle column is ASUS Zenfone 11 Ultra, right column is OnePlus Open.
Capacity	5,500 mAh (wins this row: higher)	4,805 mAh
Wired chargingNot on the official sheet	65 W HyperCharge (100% in 39 min)	67W SUPERVOOC fast charging (1–100% in ~42 mins) (wins this row: higher)
Wireless charging	15 W Qi wireless	No
Reverse wireless	10 W reverse wired	No
Charger in box	No	Yes (67W SUPERVOOC Power Adapter included in US) (wins this row: has it)

Audio

leads 1-0

Audio specifications. Middle column is ASUS Zenfone 11 Ultra, right column is OnePlus Open.
Speakers	Dual stereo speakers with Dirac Virtuo audio	Spatial Audio triple Reality speakers with Dolby Atmos
Headphone jack	Yes (3.5 mm Hi-Res audio output) (wins this row: has it)	No

Connectivity

5 differences

Connectivity specifications. Middle column is ASUS Zenfone 11 Ultra, right column is OnePlus Open.
Cellular	5G (sub-6)	5G (sub-6 GHz)
Wi-Fi	Wi-Fi 7	Wi-Fi 7 (802.11be ready)
Bluetooth	Bluetooth 5.4 with aptX Lossless	Bluetooth 5.3
NFC	Yes	Yes
USB	USB-C 2.0 (side display/charging)	USB-C 3.1 Gen 1 (DisplayPort video out)
SIM	Dual nano-SIM	Dual Nano-SIM (or 1 SIM + eSIM)

Features

3 differences

Features specifications. Middle column is ASUS Zenfone 11 Ultra, right column is OnePlus Open.
Biometrics	In-display fingerprint sensor + Face unlock	Side-mounted capacitive fingerprint sensor + Face Unlock
Extra controls	Game Genie gaming overlay toolbar	Alert Slider (Ring/Vibrate/Silent)
Standout features	6-Axis Hybrid Gimbal 3.0, 3.5mm jack, AI Call Translator, AI Transcript	Open Canvas split-screen multitasking, Hasselblad Color Calibration, Alert Slider, 67W fast charging

Most rows are from the official spec sheet. Marked rows are other published figures or our summary, not lab tests we ran.

ASUS Zenfone 11 Ultra source OnePlus Open source

Which one should you buy

Pick this one if

ASUS Zenfone 11 Ultra

Large-screen flagship with 6-Axis Hybrid Gimbal Stabilizer 3.0, 3.5mm audio jack, and 5500mAh battery.

Built-in 3.5mm headphone jack with Hi-Res Audio certification
6-Axis Hybrid Gimbal Stabilizer 3.0 for silky video recording
Massive 5,500 mAh battery with 65W HyperCharge

What you give up

Software support limited to 2 OS updates and 4 years security
Telephoto camera performance trails Samsung/Apple in low light

Full ASUS Zenfone 11 Ultra specs →

Pick this one if

OnePlus Open

Flagship book-style foldable featuring dual 120Hz LTPO 3.0 displays, Hasselblad camera system, and Open Canvas multitasking.

Best-in-class Open Canvas multitasking software
Near-invisible crease and lightweight thin foldable design
High-tier Hasselblad triple camera array with 3x periscope

What you give up

No wireless charging support
IPX4 water resistance rating is splash-only

Full OnePlus Open specs →

Best for each use

Photos

Camera first: zoom reach, sensors, stabilisation and video

Tied on photos. ASUS Zenfone 11 Ultra is cheaper.

The 4 rankable photos specs split 2 to 2.
Saves $800 at list price.

Battery & updates

All-day battery, fast top-ups and years of software support

For battery & updates, buy the OnePlus Open.

Leads 2 of 3 rankable battery & updates specs; ASUS Zenfone 11 Ultra takes 1.
Wired charging: 67W SUPERVOOC fast charging vs 65 W HyperCharge
Charger in box: Yes vs No
ASUS Zenfone 11 Ultra is $800 cheaper. Pay the difference only if wired charging matters to you.

Games & video

Games and streaming: chip, refresh rate, brightness, speakers

For games & video, buy the OnePlus Open.

Leads 2 of 2 rankable games & video specs.
Size: 7.82 inches unfolded vs 6.78 inches
Peak brightness: 2,800 nits peak on both displays / 1,400… vs 2,500 nits peak / 1,600 nits HBM
ASUS Zenfone 11 Ultra is $800 cheaper. Pay the difference only if size matters to you.

Every answer above is scored from published figures. A lens uses only the rows that matter for that use, including marked rows that are not on the official sheet. Switch lenses interactively in the panel above.

Done deciding?

Open the full standalone spec sheet for either device.

ASUS Zenfone 11 Ultra spec sheet OnePlus Open spec sheet

Manufacturer pages: ASUS Zenfone 11 Ultra ↗ · OnePlus Open ↗

Common questions

Which is cheaper, the ASUS Zenfone 11 Ultra or the OnePlus Open?

ASUS Zenfone 11 Ultra costs $800 less at list price.

What is the biggest catch with the ASUS Zenfone 11 Ultra or OnePlus Open?

Both has this deal-breaker: no stylus. No pen input for handwritten notes or markup.

Which is better for photos, the ASUS Zenfone 11 Ultra or the OnePlus Open?

Tied on photos. ASUS Zenfone 11 Ultra is cheaper. The 4 rankable photos specs split 2 to 2. Saves $800 at list price.

What cannot be compared from spec sheets?

Of the 48 specs tracked here, 35 are descriptive and cannot be ranked on numbers alone. Spec sheets also cannot measure subjective factors like build quality, real-world performance, or comfort.

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