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2026 comparison
Updated Jan 27, 2026
|Sources: Amazon, Manufacturer

Samsung Galaxy S23 Ultra vs OnePlus 12

The Samsung Galaxy S23 Ultra is the flagship option here, boasting a jaw-dropping 200MP main camera that crushes the competition. In real-world use, the S23 Ultra excels for photography enthusiasts. If you want high-end features without breaking the bank, OnePlus 12 might just be your best bet in 2026. Key specs: Display: 6.8" vs 6.82" and Battery: 5000 mAh vs 5400 mAh.

Why compare these? Both the Samsung Galaxy S23 Ultra and OnePlus 12 are premium flagship smartphones competing in the same market segment. This makes them direct rivals for buyers looking for premium flagship features and performance in 2026. Understanding their differences helps you choose the right one for your specific needs.

📱 Display: 6.8" vs 6.82"🔋 Battery: 5000 mAh vs 5400 mAh⚖️ Weight: 8.25 oz vs 7.76 oz

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Key Differences at a Glance

AspectSamsung GalaxyOnePlus 12
User Rating4.4★ (1,341 reviews)4.6★ (78 reviews)
Top StrengthClass-leading 200MP main camera and versatile 10x optical zoomExcellent value proposition with top-tier specs at a competitive price
Main DrawbackSlow charging speed (45W) compared to competitorsIP65 rating is inferior to the industry-standard IP68 (not rated for submersion)
Market PositionFlagshipFlagship
Samsung Galaxy S23 Ultra

Samsung Galaxy S23 Ultra

4.4
(1,341)Amazon
Operating System

Android

Software Support

4 generations of OS upgrades; 5 years of security updates

Processor

Qualcomm Snapdragon 8 Gen 2 for Galaxy

Graphics

Qualcomm Adreno 740

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OnePlus 12

OnePlus 12

4.6
(78)Amazon
Operating System

Android

Software Support

4 generations of Android OS upgrades; 5 years of security updates

Processor

Qualcomm Snapdragon 8 Gen 3 Mobile Platform

Graphics

Qualcomm Adreno 750

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Key spec differences

Only the specs that differ are shown here. Winners are highlighted when the data is clear.

Display2 specs
Display SizeKey
Samsung Galaxy S23 Ultra
6.8" (measured diagonally; actual viewable area is less)
OnePlus 12
6.82" (measured diagonally from corner to corner)
Winner
Refresh Rate
Samsung Galaxy S23 Ultra
1–120Hz (Adaptive)
OnePlus 12
1–120Hz (Dynamic)
Performance3 specs
ProcessorKey
Samsung Galaxy S23 Ultra
Qualcomm Snapdragon 8 Gen 2 for Galaxy
OnePlus 12
Qualcomm Snapdragon 8 Gen 3 Mobile Platform
RAMKey
Samsung Galaxy S23 Ultra
8GB / 12GB LPDDR5X
OnePlus 12
12GB / 16GB LPDDR5X
Winner
Storage
Samsung Galaxy S23 Ultra
256GB / 512GB / 1TB (UFS 4.0)
OnePlus 12
256GB / 512GB (UFS 4.0)
Camera2 specs
Main CameraKey
Samsung Galaxy S23 Ultra
200MP Wide (f/1.7, 85° FOV), Laser AF, OIS
Winner
OnePlus 12
50MP Wide (Sony LYT-808, f/1.6, 23mm equiv), PDAF, OIS
Ultra-Wide Camera
Samsung Galaxy S23 Ultra
12MP Ultra-Wide (f/2.2, 120° FOV)
OnePlus 12
48MP Ultra-Wide (Sony IMX581, f/2.2, 114° FOV)
Battery2 specs
Battery CapacityKey
Samsung Galaxy S23 Ultra
5,000 mAh (Typical)
OnePlus 12
5,400 mAh (Dual-cell 2,700 mAh, non-removable)
Winner
Wireless Charging
Samsung Galaxy S23 Ultra
Fast Wireless Charging 2.0 (15W); Wireless PowerShare
OnePlus 12
50W AIRVOOC; 10W Reverse Wireless Charging
Design2 specs
Weight
Samsung Galaxy S23 Ultra
8.25 oz (234 g)
OnePlus 12
7.76 oz (220 g)
Winner
Dimensions
Samsung Galaxy S23 Ultra
6.43" x 3.07" x 0.35" (163.4 x 78.1 x 8.9 mm)
OnePlus 12
6.47" x 2.98" x 0.36" (164.3 x 75.8 x 9.15 mm)
Connectivity1 specs
Connectivity
Samsung Galaxy S23 Ultra
5G (Sub6/mmWave); Wi-Fi 6E (802.11ax); Bluetooth 5.3; NFC; UWB
OnePlus 12
5G (Sub6/mmWave); Wi-Fi 7 (802.11be); Bluetooth 5.4; NFC; IR Blaster
+

Full specs, pros, and cons

Everything side-by-side with ratings and the full spec list.

Comparison: Samsung Galaxy S23 Ultra vs OnePlus 12

Samsung Galaxy S23 Ultra

Samsung Galaxy S23 Ultra

4.4(1,341)Amazon
OnePlus 12

OnePlus 12

4.6(78)Amazon
Samsung Galaxy S23 Ultra

Samsung Galaxy S23 Ultra

4.4(1,341)Amazon
Operating System

Android

Software Support

4 generations of OS upgrades; 5 years of security updates

Processor

Qualcomm Snapdragon 8 Gen 2 for Galaxy

Graphics

Qualcomm Adreno 740

RAM

8GB / 12GB LPDDR5X

Storage

256GB / 512GB / 1TB (UFS 4.0)

Pros

  • Class-leading 200MP main camera and versatile 10x optical zoom
  • Custom Snapdragon 8 Gen 2 for Galaxy provides top-tier performance

Cons

  • Slow charging speed (45W) compared to competitors
  • Large and heavy (8.25 oz) form factor is difficult for one-handed use
OnePlus 12

OnePlus 12

4.6(78)Amazon
Operating System

Android

Software Support

4 generations of Android OS upgrades; 5 years of security updates

Processor

Qualcomm Snapdragon 8 Gen 3 Mobile Platform

Graphics

Qualcomm Adreno 750

RAM

12GB / 16GB LPDDR5X

Storage

256GB / 512GB (UFS 4.0)

Pros

  • Excellent value proposition with top-tier specs at a competitive price
  • Massive 5,400mAh battery paired with very fast 80W wired and 50W wireless charging

Cons

  • IP65 rating is inferior to the industry-standard IP68 (not rated for submersion)
  • Curved screen edges can be prone to accidental touches despite rejection algorithms

Which one is better?

The Samsung Galaxy S23 Ultra is the better buy for most people - its 200MP camera crushes the OnePlus 12's 64MP. That said, grab the OnePlus 12 if you need faster charging and a phone - it weighs 7.76oz compared to the S23 Ultra's 8.25oz.

Who should buy each?

Choose the Samsung Galaxy S23 Ultra if: you shoot a lot of photos, need top-tier performance for gaming, or want a premium build with an S Pen. (6.8" display, 5000 mAh battery)
Choose the OnePlus 12 if: you need a long-lasting battery, prefer faster charging speeds, or want a lighter phone for everyday use. (6.82" display, 5400 mAh battery)

B

Quality Seekers

Higher user rating (4.6★ vs 4.4★) indicates better overall satisfaction

→ Choose OnePlus 12

A

Safe Choice Buyers

More widely tested with 1,341 reviews vs 78

→ Choose Samsung Galaxy

A

Class-leading 200MP main Priority

Class-leading 200MP main camera and versatile 10x optical zoom

→ Choose Samsung Galaxy

B

Excellent value proposition Priority

Excellent value proposition with top-tier specs at a competitive price

→ Choose OnePlus 12

Conclusion

With the key differences outlined, the decision should be clearer. Both options deliver quality—choose the one that fits your priorities.

Bottom line: The OnePlus 12 leads with a 4.6★ rating versus 4.4★. That said, Samsung Galaxy S23 Ultra could still be the right pick depending on your specific priorities.

Frequently Asked Questions

+Which is better: Samsung Galaxy S23 Ultra or OnePlus 12?

Samsung Galaxy S23 Ultra is the better choice if you prioritize class-leading 200mp main camera and versatile 10x optical zoom. OnePlus 12 wins if you value excellent value proposition with top-tier specs at a competitive price. Both are rated highly (4.4★ vs 4.6★), so consider your specific needs and budget.

+What are the main differences between Samsung Galaxy S23 Ultra and OnePlus 12?

Key differences: Samsung Galaxy S23 Ultra offers class-leading 200mp main camera and versatile 10x optical zoom, while OnePlus 12 stands out with excellent value proposition with top-tier specs at a competitive price. Consider that Samsung Galaxy S23 Ultra slow charging speed (45w) compared to competitors. Meanwhile, OnePlus 12 ip65 rating is inferior to the industry-standard ip68 (not rated for submersion). Check the detailed specs table above for a complete comparison.

+Where can US buyers get the best price?

For US buyers, Amazon typically offers competitive pricing with Prime shipping, easy returns, and reliable warranty support. We recommend comparing prices on both products using our affiliate links above—prices fluctuate regularly, and you may find sales or deals.

+Is this comparison up to date?

Yes, this comparison is current for 2026. We regularly verify specs, ratings, and availability. Last verified: January 27, 2026. PageBen uses affiliate links for monetization, but our recommendations are research-driven and independent.

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