The TL;DR

OnePlus for most hardware per rupee. Samsung for software longevity and feature breadth on Android. Apple for ecosystem, resale value, and video.

Brand Strengths and Weaknesses

OnePlus

Strong: Flagship chips at mid-range prices, fast charging (100W+), OxygenOS is cleanish.
Weak: Cameras trail Samsung and Apple, software updates have been patchy, service network smaller.

Samsung

Strong: 7 years of software updates (Galaxy S24 onwards), best Android displays, widest price range, biggest service network in India.
Weak: Mid-range phones (A-series) are overpriced vs Chinese rivals. Bloatware.

Apple

Strong: 5-6 years of iOS updates, best resale value, best video on any phone, cleanest ecosystem with Mac/iPad/Watch.
Weak: Expensive, 60 Hz on non-Pro models in 2025, slow charging.

Head-to-Head Comparison

FactorOnePlusSamsungApple
Software updates4 years7 years5-6 years
Camera (stills)GoodExcellentExcellent
Camera (video)GoodVery goodBest
DisplayVery goodBestVery good
ChargingBest (100W+)Mid (45W)Slow (20W)
Resale after 2 years35-40%45-50%60-70%
Service networkMediumWidestLimited, premium
EcosystemMinimalWide (Galaxy)Best

Pick by Budget

Who Should Pick Which

Verdict

There is no wrong answer; there are wrong matches. If you have an iPad and Mac, buy iPhone. If you have a Samsung TV and Watch, buy Samsung. If you are price-sensitive and Android-native, OnePlus gives you the most per rupee.