OnePlus 6 Key Features
OnePlus 6 Specifications
Body & Design
- Dimensions
- 155.7 × 75.4 × 7.75 mm
- Weight
- 177 g
- Build materials
- Glass back
- Available colors
- Mirror Black, Midnight Black, Silk White, Red
- Buttons / controls
- Power, volume controls, alert slider
Network & Cellular
- Network technology
- 4G LTE
- SIM configuration
- Dual Nano-SIM
Software & Processor
- Operating system
- OxygenOS based on Android 8.1
- User interface
- OxygenOS
- Chipset / SoC
- Qualcomm Snapdragon 845
- GPU
- Adreno 630
RAM & Storage
- RAM
- 6GB / 8GB
- RAM type
- LPDDR4X
- Internal storage
- 64GB / 128GB / 256GB
- Storage technology
- UFS 2.1
- Memory card slot
- No microSD expansion
Display
- Display technology
- Optic AMOLED
- Screen size
- 6.28 inches
- Resolution
- 2280 × 1080
- Refresh rate
- 60 Hz
- Aspect ratio
- 19.5:9
- Display protection
- Corning Gorilla Glass 5
Camera & Video
- Rear camera setup
- 16MP primary + 20MP secondary
- Primary sensor
- Sony IMX519
- Optical stabilization
- Main rear camera
- Rear video recording
- 4K at 30/60 fps
- Front camera
- 16MP, f/2.0
- Front video recording
- 1080p at 30 fps
Battery & Charging
- Battery capacity
- 3300 mAh
- Wired charging
- 20W wired fast charging (5V/4A)
- Removable battery
- No
Audio
- Speakers
- Bottom-firing speaker
- Stereo speakers
- No
- 3.5mm headphone jack
- 3.5 mm headphone jack
Wireless & Connectivity
- Wi-Fi
- Wi-Fi 5 (802.11 a/b/g/n/ac)
- Bluetooth
- Bluetooth 5.0
- Positioning / GNSS
- GPS, GLONASS, Galileo, BeiDou
- NFC
- Yes
- USB
- USB Type-C 2.0
Sensors & Security
- Fingerprint reader
- Rear-mounted fingerprint reader
- Face unlock
- Yes
Price last checked: 2026-10-31
Prices may vary by variant and local market.
What the OnePlus 6 offers
OnePlus 6 is best understood through its actual hardware: a 6.28-inch Optic AMOLED display, Qualcomm Snapdragon 845, 6GB / 8GB physical RAM and a 3300 mAh battery. Its main appeal is rear fingerprint scanning and a traditional headphone jack. For a buyer in Pakistan, the decisive issue is not an old launch price but the condition, exact hardware variant and registration status of the particular handset offered.
OnePlus 6 buyers get a combination that became less common in later OnePlus phones: a physical rear fingerprint reader and a conventional headphone socket. The sensor is easy to find without looking at the screen. The trade-off is a large top notch and a battery capacity that appears modest beside later models.
Screen, handling and build
The 6.28-inch Optic AMOLED panel has a 2280 × 1080 resolution and a 60 Hz refresh rate. The larger top notch accommodates the front camera and other hardware; it is noticeably different from the small teardrop cutout on the 6T. The display specification describes its original design, not its current condition. When evaluating a used example, inspect several brightness settings, look closely at all corners, and open a plain grey screen to reveal discoloration, uneven areas or persistent marks.
This handset measures 155.7 × 75.4 × 7.75 mm and weighs 177 g. Common finishes include Mirror Black, Midnight Black, Silk White, Red. The form factor affects practical matters such as pockets, one-handed typing and protective-case availability. A cracked back, bent frame or loose buttons are more than cosmetic clues; they can indicate impact damage that may affect connectors, camera alignment and the display underneath.
Chipset, RAM and everyday speed
The Qualcomm Snapdragon 845 is paired with Adreno 630 graphics and 6GB / 8GB RAM. Internal storage options are 64GB / 128GB / 256GB, using UFS 2.1. These components determine the baseline for opening apps, retaining background tasks and moving photographs. They do not prove a particular game frame rate or benchmark result; software version, remaining storage, device temperature and battery management can all change the experience.
The 6.28-inch Optic AMOLED panel remains suitable for readable text and video, while the Snapdragon 845 gives the phone a genuine high-end starting point. Nevertheless, memory, storage and condition vary between handsets. The 64GB version needs more frequent photo and download management than the 128GB or 256GB versions. A sensible test is to open the apps you actually use, switch between them and check whether the phone becomes unusually hot or loses charge rapidly. Storage size is especially important when recording video or keeping offline maps and downloaded media. Advertised capacity is not identical to space available after the operating system and installed apps.
Camera system and video
On the back, OnePlus 6 has 16MP primary + 20MP secondary. Its main camera is 16MP, f/1.7 with a Sony IMX519 sensor. The front-camera specification is 16MP, f/2.0. The secondary 20MP camera supports imaging functions rather than adding an ultra-wide field of view or long optical zoom. Camera quality also depends on clean lens glass, accurate focus, software processing and whether optical stabilization is working where fitted.
OnePlus fitted a 16MP main camera with stabilization alongside a 20MP secondary camera. Do not buy it expecting an ultra-wide lens merely because it has two rear lenses. The 16MP front camera handles self-portraits, and the main camera supports 4K video up to 60 fps. The rear video specification includes 4K at 30/60 fps; the front camera supports 1080p at 30 fps. Rear 4K recording at 60 fps is supported, though heavy video use can consume storage and battery quickly. If videos matter, test the microphone, autofocus and recording audio directly on the handset. A high-resolution format does not fix shaky handling, noisy surroundings or a damaged camera mechanism.
Battery, charging and care
The battery was rated at 3300 mAh when new. Charging is 20W wired fast charging (5V/4A). The original 3300 mAh battery is relatively small, so a battery-health inspection is essential on an older unit. Check how quickly the percentage drops during normal screen use, whether charging stays connected and whether the phone gets noticeably hot. An older device can retain its advertised battery specification while no longer delivering the same endurance in practice.
The battery is internal and not intended for routine user replacement. A charger or cable that physically fits is not necessarily capable of the manufacturer’s full fast-charging protocol. Where replacement batteries have been installed, ask for documentation of parts and repair quality. The state of the USB-C port is just as important as the stated wattage.
Software, mobile network and connectivity
OnePlus 6 originally shipped with OxygenOS based on Android 8.1. That is a launch-software specification, not a claim about its current patch level or future update eligibility. Open the device settings to view the version actually installed, confirm that security-related features work and make sure factory-reset protection or another owner’s account will not stop a legitimate transfer.
Connectivity includes 4G LTE, Wi-Fi 5 (802.11 a/b/g/n/ac), Bluetooth 5.0 and USB Type-C 2.0. Fingerprint unlocking uses a rear-mounted fingerprint reader. The audio arrangement includes bottom-firing speaker and 3.5 mm headphone jack. Radio features depend on the specific regional edition. Before buying in Pakistan, verify its IMEI through official PTA channels and check actual SIM registration and call quality; manufacturer 5G or LTE support alone does not establish PTA approval.
Important limitations and what to inspect
The biggest practical drawback is its modest original battery capacity and large screen notch. The larger top notch accommodates the front camera and other hardware; it is noticeably different from the small teardrop cutout on the 6T. This model was engineered for a different generation of networks and apps, so the original specification sheet cannot predict future software support. Do not interpret a familiar brand name as proof that spare parts, batteries or original accessories will be easy to obtain locally.
Inspect the exact phone, not only a seller’s storage label. Confirm the screen refresh setting where relevant, test both cameras, play audio through every speaker and make a normal cellular call. Check charging while gently moving the connector, then verify physical RAM and storage in system settings. Make sure cameras, fingerprint unlocking and proximity sensing continue to function after the phone is locked and unlocked.
How it compares with related OnePlus phones
A practical comparison starts with OnePlus 6T. The choice is rarely decided by a single chipset number. Screen technology, camera lenses, battery size, dimensions and the type of fingerprint reader can change the day-to-day experience. In this part of the OnePlus range, it is particularly important not to confuse the standard handset with its Pro, T or Nord-branded relative.
Possible alternatives include OnePlus 6T for an in-screen fingerprint sensor and larger battery, or OnePlus 7 for stereo sound. Compare the physical devices in similar condition, ideally at the same brightness and using the same local SIM. A model with a stronger specification on paper may be the worse purchase if its battery has deteriorated, its display was poorly replaced or its cellular identity is not properly registered.
Who should consider this phone?
OnePlus 6 makes the most sense for someone who values the headphone jack and responsive physical fingerprint placement. Its strengths are a smaller glass-backed flagship with a wired-audio connection; its limitations deserve the same attention. It is less sensible to choose it solely because an old headline price seems lower than that of a newer phone. The purchase decision should combine current condition, storage variant, independent PTA checking and the practical cost of possible repairs.
Use the specifications above as a checklist rather than a guarantee about a used unit. Confirm the exact model and regional edition, check battery and display condition, test normal network use, and assess whether the installed software still supports the services you need. When those checks are satisfactory, OnePlus 6 can be evaluated on its real strengths rather than assumptions attached to its age or brand.
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