ASUS ROG Phone 9 Pro
$1,199
ASUS ROG Phone 9 Pro vs Samsung Galaxy S21 Plus
Samsung Galaxy S21 Plus
$999
| ROG Phone 9 Pro | Galaxy S21 Plus | |
|---|---|---|
| Price | USD 1,199 | USD 999 |
| Battery | 5800 mAh | 4800 mAh |
| Charging (W) | 65 | 25 |
| RAM | 16 GB | 8 GB |
| Storage | 512 GB | 128 GB |
| Chipset | Qualcomm Snapdragon 8 Elite | Samsung Exynos 2100 |
| Display | 6.78" • Samsung Flexible LTPO AMOLED • 185Hz | 6.7" • Dynamic AMOLED 2X • 120Hz |
| Main Camera | 50MP | 12MP |
| Front Camera | 32MP | 10MP |
| OS | Android 15 | Android 11 |
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Key Differences
Only the differences that meaningfully separate these phones.
Price
USD 200 cheaper
Galaxy S21 PlusUSD 999
vsROG Phone 9 ProUSD 1,199
RAM
2× more RAM
ROG Phone 9 Pro16 GB RAM
vsGalaxy S21 Plus8 GB RAM
Storage
4× more storage
ROG Phone 9 Pro512 GB
vsGalaxy S21 Plus128 GB
Battery
21% larger battery
ROG Phone 9 Pro5,800 mAh
vsGalaxy S21 Plus4,800 mAh
Charging
40 W faster wired charging
ROG Phone 9 Pro65 W wired
vsGalaxy S21 Plus25 W wired
Performance
Different chipsets
ROG Phone 9 ProQualcomm Snapdragon 8 Elite
vsGalaxy S21 PlusSamsung Exynos 2100
Display
185 Hz refresh
ROG Phone 9 Pro185 Hz
vsGalaxy S21 Plus120 Hz
Best For
Where each phone stands out based on this comparison.
Best if you want
More hardwareASUS ROG Phone 9 Pro
More RAM and storage16 GB RAM · 512 GB
Larger battery5,800 mAh
Faster wired charging65 W wired
Up to 185 Hz display6.78-inch
Best if you want
Lower priceSamsung Galaxy S21 Plus
Much lower purchase priceUSD 999
What CompareTab says about ASUS ROG Phone 9 Pro vs Samsung Galaxy S21 Plus
ASUS ROG Phone 9 Pro offers more RAM, storage, battery capacity and a smoother display than Galaxy S21 Plus, with 16 GB of RAM versus 8 GB, 512 GB of storage versus 128 GB, a 5800 mAh battery versus 4800 mAh, and a 185 Hz display instead of 120 Hz. It also adds a higher-resolution rear camera (50 MP versus 12 MP), a higher-resolution front camera (32 MP versus 10 MP), and 65W charging. Samsung Galaxy S21 Plus, however, is around $200 cheaper, lighter at 200 g versus 227 g, and thinner at 7.8 mm versus 8.9 mm. The main trade-off is the ROG Phone 9 Pro’s extra RAM, storage, faster charging, battery capacity, and smoother display versus the Galaxy S21 Plus’s lower price and lighter, thinner build.
