OnePlus 3T vs OnePlus 8T: A Generational Leap?

The OnePlus 3T was a game-changer when it launched, offering flagship specs at a competitive price. Now, years later, the OnePlus 8T builds upon that legacy with significant upgrades. But is the upgrade worth it? Let's dive into a detailed comparison to find out.
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🏆 Quick Verdict

The OnePlus 8T is the clear winner, boasting a faster processor, significantly improved charging, a brighter display, and a longer-lasting battery. While the 3T remains a capable device, the 8T offers a modern experience and justifies its price for most users.

PHONES
Phone Names OnePlus 3T OnePlus 8T
Network
2G bandsGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - North AmericaHSDPA 800 / 850 / 900 / 1700(AWS) / 1800 / 1900 / 2100
4G bands1, 2, 4, 5, 7, 8, 12, 17, 30 - North America1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 34, 38, 39, 40, 41, 42, 66 - EU
5G bands-1, 3, 7, 28, 41, 78 SA/NSA - EU
SpeedHSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 MbpsHSPA 42.2/5.76 Mbps, LTE (5CA) Cat18 1200/200 Mbps, 5G 7.5 Gbps DL
TechnologyGSM / HSPA / EVDO / LTEGSM / CDMA / HSPA / LTE / 5G
 1, 3, 5, 7, 8, 20, 38, 40 - Global model41, 78, 79 SA/NSA - CN
Launch
Announced2016, November. Released 2016, November2020, October 14
StatusDiscontinuedAvailable. Released 2020, October 16
Body
BuildGlass front (Gorilla Glass 4), aluminum back, aluminum frameGlass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame
Dimensions152.7 x 74.7 x 7.4 mm (6.01 x 2.94 x 0.29 in)160.7 x 74.1 x 8.4 mm (6.33 x 2.92 x 0.33 in)
SIMNano-SIM + Nano-SIMNano-SIM + Nano-SIM
Weight158 g (5.57 oz)188 g (6.63 oz)
Display
ProtectionCorning Gorilla Glass 4Corning Gorilla Glass 5
Resolution1080 x 1920 pixels, 16:9 ratio (~401 ppi density)1080 x 2400 pixels, 20:9 ratio (~402 ppi density)
Size5.5 inches, 83.4 cm2 (~73.1% screen-to-body ratio)6.55 inches, 103.6 cm2 (~87.0% screen-to-body ratio)
TypeOptic AMOLEDFluid AMOLED, 120Hz, HDR10+
 -Always-on display
Platform
CPUQuad-core (2x2.35 GHz Kryo & 2x1.6 GHz Kryo)Octa-core (1x2.84 GHz Cortex-A77 & 3x2.42 GHz Cortex-A77 & 4x1.80 GHz Cortex-A55)
ChipsetQualcomm MSM8996 Snapdragon 821 (14 nm)Qualcomm SM8250 Snapdragon 865 5G (7 nm+)
GPUAdreno 530Adreno 650
OSAndroid 6.0.1 (Marshmallow), upgradable to Android 9.0 (Pie)Android 11, upgradable to Android 14, OxygenOS 14
Memory
Card slotNoNo
Internal64GB 6GB RAM, 128GB 6GB RAM128GB 8GB RAM, 256GB 12GB RAM
 -UFS 3.1
Main Camera
FeaturesLED flash, panorama, HDRDual-LED flash, HDR, panorama
Quad-48 MP, f/1.7, 26mm (wide), 1/2.0", 0.8µm, PDAF, OIS 16 MP, f/2.2, 14mm, 123˚ (ultrawide), 1/3.6", 1.0µm 5 MP (macro) 2 MP, f/2.4, (monochrome)
Single16 MP, f/2.0, 1/2.8", 1.12µm, PDAF, OIS-
Video4K@30fps, 1080p@30/60fps, 720p@120fps, Auto HDR4K@30/60fps, 1080p@30/60/240fps, Auto HDR, gyro-EIS
Selfie camera
Features-HDR
Single16 MP, f/2.0, (wide), 1/3.06", 1.0µm16 MP, f/2.4, (wide), 1/3.06", 1.0µm
Video1080p@30fps1080p@30fps, gyro-EIS
Sound
3.5mm jack YesNo
35mm jackYesNo
Loudspeaker YesYes, with stereo speakers
Comms
Bluetooth4.2, A2DP, aptX HD, LE5.1, A2DP, LE, aptX HD
NFCYesYes
PositioningGPS, GLONASS, BDSGPS (L1+L5), GLONASS (G1), BDS (B1), GALILEO (E1+E5a)
RadioNoNo
USBUSB Type-C 2.0USB Type-C 3.1, OTG
WLANWi-Fi 802.11 a/b/g/n/ac, Wi-Fi Direct, DLNAWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct, DLNA
Features
SensorsFingerprint (front-mounted), accelerometer, gyro, proximity, compassFingerprint (under display, optical), accelerometer, gyro, proximity, compass, barometer (market dependant)
Battery
Charging20W wired65W wired, 100% in 39 min
TypeLi-Ion 3400 mAh, non-removableLi-Po 4500 mAh
Misc
ColorsGunmetal, Soft Gold, Midnight BlackAquamarine Green, Lunar Silver, Cyberpunk 2077 Edition
ModelsA3010, A3003KB2001, KB2000, KB2003, KB2005
PriceAbout 440 EUR€ 130.75
SAR0.99 W/kg (head)     0.65 W/kg (body)-
Tests
Audio quality Noise-94.3dB / Crosstalk -93.4dB-
Battery life Endurance rating 83h Endurance rating 104h
Camera Photo / Video Photo / Video
Display Contrast ratio: Infinite (nominal), 4.232 (sunlight) Contrast ratio: Infinite (nominal)
Loudspeaker Voice 61dB / Noise 69dB / Ring 78dB -24.0 LUFS (Very good)
Performance AnTuTu: 171678 (v7) GFXBench: 20fps (ES 3.1 onscreen) AnTuTu: 586000 (v8) GeekBench: 3126 (v5.1) GFXBench: 46fps (ES 3.1 onscreen)

OnePlus 3T

  • Affordable
  • Compact design
  • Decent performance for its age
  • Good battery life (for its age)

  • Outdated processor
  • Slower charging
  • Less capable camera
  • No 5G

OnePlus 8T

  • Fast charging (65W)
  • Bright and smooth 120Hz display
  • Powerful Snapdragon 865 processor
  • Improved camera system
  • 5G connectivity

  • Higher price
  • Larger size
  • Software support nearing end of life

Display Comparison

The OnePlus 8T's display is a noticeable upgrade. It boasts a higher peak brightness of 802 nits (measured) compared to the 3T's reported 4.232 in sunlight (likely a contrast ratio measurement). The 8T also features a smoother 120Hz refresh rate, making scrolling and animations feel significantly more fluid. While both offer excellent contrast ratios (nominally infinite), the 8T's overall visual experience is superior.

Camera Comparison

While both phones offer capable cameras, the OnePlus 8T has a more versatile and improved camera system. It generally captures more detailed photos with better dynamic range and low-light performance. The 8T also benefits from newer image processing algorithms. The 3T's camera is still usable, but the 8T provides a more modern and consistent photographic experience.

Performance

The Snapdragon 865 in the OnePlus 8T is a substantial leap over the 821 in the 3T. The 8T's octa-core CPU and 7nm+ process provide significantly faster processing speeds and improved efficiency. Expect smoother multitasking, quicker app loading times, and better performance in demanding games. The 3T still holds up reasonably well, but the 8T is in a different league.

Battery Life

The OnePlus 8T improves upon the 3T's already respectable battery life. With an endurance rating of 104 hours versus the 3T's 83 hours, the 8T offers noticeably longer usage between charges. However, the real game-changer is the 8T's 65W fast charging, which can fully charge the phone in just 39 minutes – a stark contrast to the 3T's 20W charging.

Buying Guide

Who should buy the OnePlus 3T? Those on a tight budget looking for a reliable, albeit older, smartphone. Who should buy the OnePlus 8T? Anyone seeking a modern flagship experience with fast charging, a vibrant display, and improved performance.

Frequently Asked Questions

❓ Is the OnePlus 3T still worth buying in 2024?
Only if you're on a very tight budget and need a basic smartphone. Its age means it lacks modern features and performance.
❓ How much faster is the OnePlus 8T's charging?
The 8T's 65W charging is significantly faster, fully charging the phone in around 39 minutes, compared to the 3T's 20W which takes considerably longer.