Introduction
The Realme P3 5G arrives as a value-focused mid-ranger that aggressively targets gamers and heavy users with a large 6000mAh battery, a fast 120Hz AMOLED display, and Qualcomm’s new Snapdragon 6 Gen 4 chipset. At launch and during many deals, it sits in the sub-Rs 20,000 bracket, which makes it a serious contender for the best smartphone under 20000 if your priorities are battery life, display, and smooth day-to-day performance.
Design
Realme opted for a lightweight, practical approach: a polymer back with textured patterns in some colorways, narrow bezels up front, and a flat frame that makes it easy to grip. At around the same weight class as many 6000mAh phones, it’s not feather-light, but ergonomics are good thanks to the slightly tapered edges. Notable extras: Realme advertises IP-level water/dust resistance on the P3 family and a durable front glass (brand specs list reinforced glass), which is rare in this price segment. If you want a phone that handles daily knocks without feeling plasticky, this is a strong design choice.
Display
The P3 5G uses a 6.67-inch Full HD+ 120Hz AMOLED esports display — this is fast, bright, and pin-sharp for the price. Realme also claims very high peak brightness figures (marketing materials list extreme peak nits for HDR/auto modes,) which means outdoor visibility is excellent. The 120Hz refresh rate and AMOLED contrast make scrolling, reading, and gaming feel noticeably smoother than on ordinary 60Hz LCD phones in the same price range. For media consumers and mobile gamers, this display is a standout reason to consider the phone.
Performance & chipset
Under the hood, the Realme P3 5G runs the Qualcomm Snapdragon 6 Gen 4 paired with 6GB/8GB RAM options and storage tiers up to 256GB (UFS depending on region). This chipset is tuned for strong single-core and GPU performance in the midrange class, so everyday tasks (browsing, social apps, multitasking) are snappy and app cold starts are quick. Realme also adds an “AeroSpace” cooling / VC system, as well as software optimizations aimed at sustained gaming — they advertise 90–120 FPS support in some titles with boosted touch responsiveness. In short, this is one of the more capable performers you’ll find near the ₹15–20k price bracket.
Cameras
Camera hardware on the P3 5G is straightforward: a 50MP primary sensor (f/1.8) backed by a 2MP depth/portrait helper, and a 16MP front camera for selfies. In daylight, the 50MP sensor captures detailed, nicely exposed shots with accurate colors and good dynamic range for the class. Night mode helps pull out shadows, though you shouldn’t expect flagship-level low-light magic. Portraits are decent thanks to depth processing, but the secondary 2MP sensor limits versatility — there’s no dedicated ultra-wide or tele module on the standard P3 (that’s something some sibling models address). Video tops out at 4K@30fps for the rear sensor, and EIS helps stabilize 1080p clips. Overall: dependable, not revolutionary.
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Battery & charging
This is one of the P3’s strongest suits: a 6000mAh Titan battery that easily runs two full days under mixed use and can push a gamer through long sessions thanks to Realme’s power tuning. Realme pairs this huge pack with 45W fast charging, so topping up is reasonably fast for a battery of this size compared with slower chargers in cheaper phones. If battery life is your top priority, the P3 5G is a heavyweight champion in its price segment and a core reason it’s often recommended among the best smartphones under 20000 candidates.
Software Updates
Realme ships its P3 5G with Realme UI (Android 15 based on many units at launch in global markets) – It’s feature-rich, but you’ll see Realme’s own skin elements and a few preinstalled apps. Software offers customization (always-on display options on AMOLED, game space optimizations, privacy controls) and performance modes for gaming that take advantage of the chipset and cooling hardware. OTA support and update cadence can vary by region, so check local Realme update policies if long-term Android updates matter to you.
Gaming & thermals
If you game a lot, the P3 5G is designed with that use case in mind: high refresh display, Snapdragon 6 Gen 4, VC cooling, and game-focused software. In practice, the phone handles popular Android titles smoothly at high frame rates with manageable thermal throttling thanks to the cooling system. Long sessions will warm the phone (expected with 6000mAh and fast charging), but throttling is controlled, and performance stays good for extended matches.
Connectivity
Connectivity is modern: dual-SIM 5G support, Bluetooth, Wi-Fi, and GPS are all present and reliable. The stereo speaker setup (or loud single speaker, depending on variant) is satisfactory for media and calls. NFC and a reliable in-display fingerprint (on AMOLED models) round off the convenience features. For most users, this phone covers all essential daily bases without the compromises that plague some ultra-cheap models.
Price
At launch, the Realme P3 5G entered at price points within Rs16,999 to Rs19,999 for common configurations (the base 6/128 variant and higher 8/128 / 8/256 variants). That pricing places it squarely in the market where buyers ask, “Which is the best smartphone under 20000?” — and here the P3 makes a strong case:
Pros
- Exceptional battery life thanks to 6000mAh + 45W charging.
- 120Hz AMOLED display that outclasses many rivals in the same price band.
- Smooth real-world performance for day-to-day use and gaming thanks to Snapdragon 6 Gen 4.
Cons
- The camera system is solid for daylight but lacks ultra-wide/tele versatility (dual sensor only).
- Realme UI contains bloat/app suggestions that some users dislike (fixable but worth noting).
- If you prioritise the absolute best camera kit or wireless charging, look at slightly higher-priced alternatives.
Final verdict: For buyers who value battery life, a great display, and balanced performance — all while staying inside the ₹20,000 ceiling — the Realme P3 5G offers one of the most compelling combinations on the market. If your budget is around ₹15k–₹20k and you want a phone that lasts long, plays smoothly, and displays beautifully, the P3 should be high on your shortlist for the best smartphone under 20000. If photography versatility or a minimal-skin Android is your priority, compare a few alternatives first.
