OnePlus 9 has a 6.55 inches Fluid Full HD+ Fluid AMOLED display and a 120Hz refresh rate. It has its front camera beautifully placed in the most convenient place. It has a triple (48+50+2 MP) camera arrangement at the back with multi-directional PDAF, monochrome, ultrawide, Hasselblad Color Calibration, dual-LED flash, HDR, panorama, etc., and Ultra HD video recording which is the same setup. The ultrawide camera depends on a 50MP camera behind the f/2.2, 44 mm lens. the main or back camera can record 8k with30FPS, 4k video with 30/60FPS and 1080p with 30/60/240fps. It has Night Mode and Auto HDR, gyro-EIS. OnePlus 9 has a front camera of 16 MP and a lens of f/2.4. The front camera records 1080p with 30FPS and it has Auto-HDR and gyro-EIS.
It comes with a 4500 mAh Li-Po battery with 65W wired fast charging which is decent. You can buy this phone with 8/12 GB RAM, up to Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) CPU, and Adreno 660 GPU. The phone is powered by a Qualcomm SM8350 Snapdragon 888 5G (5 nm) chipset. The phone comes with 256 GB internal storage but unfortunately, there is no MicroSD slot in this phone. There is also an optical in-display Fingerprint (under display, optical) sensor under display in this phone which is standard.
OnePlus 9 has all the other standard features like Dual SIM. Face Unlock, USB Type-C 3.1, OTG, accelerometer, gyro, proximity, compass, color spectrum, etc. OnePlus 9 8 GB RAM lets users save their significant documents and preferred games within a 256GB non-expandable internal storage. This is the prime version to go for as 12GB RAM is good enough for most things you'd expect to do on your smartphone. Users can also play fantastic mobile games like PUBG, and Free Fire, COD smoothly without any lag or delay offering that they have a good internet connection. Though it costs a little more if the users buy the 12GB RAM and 256GB ROM Version, they will not concern about upgrading to a new phone for a long time.