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The realme P3x 5G and vivo X300 FE sit in very different price tiers in India: the P3x is the lower-cost, large-screen option, while the X300 FE is a compact premium phone with a faster listed processor, more versatile cameras, faster charging and a longer advertised update policy. Price snapshots vary by seller and date, so check the live offer and exact configuration rather than treating the listed prices as a fixed difference.
realme P3x vs vivo X300 FE: specs comparison
The figures below come from the manufacturers’ published specifications unless otherwise noted; they are not independent test results. The price entries are separate snapshots, not like-for-like current quotes.
| Specification | realme P3x 5G | vivo X300 FE |
|---|---|---|
| India price evidence | 91mobiles listed ₹12,999 at Flipkart; a current official realme price was not established. 91mobiles comparison | vivo India’s store displayed ₹94,999 for 12GB/256GB, against an MRP of ₹119,999. 91mobiles listed ₹89,999 at Amazon. These are different snapshots. vivo India store · 91mobiles comparison |
| Processor | MediaTek Dimensity 6400, 6nm, octa-core up to 2.5GHz. realme specifications | Snapdragon 8 Gen 5, 3nm, octa-core; vivo lists speeds up to 3.80GHz. vivo India store |
| Display | 6.72-inch LCD, 2400 × 1080 resolution, up to 120Hz, stated peak brightness of 950 nits. realme specifications | 6.31-inch AMOLED, 2640 × 1216 resolution, 120Hz, stated local peak brightness of 5000 nits. vivo India store |
| RAM and storage | 6GB or 8GB RAM; 128GB storage. realme specifications | 8GB or 12GB RAM; 256GB or 512GB storage. vivo India store |
| Rear cameras | 50MP main camera; 91mobiles also lists a 2MP depth camera. realme specifications · 91mobiles comparison | 50MP main camera with OIS, 50MP telephoto with OIS, and 8MP wide-angle camera. vivo India store |
| Front camera | 8MP, according to 91mobiles. 91mobiles comparison | 50MP autofocus camera. vivo India store |
| Battery and charging | 6000mAh typical capacity and 45W charging; realme says a 45W adapter is included. realme specifications | 6500mAh typical capacity, 90W wired charging and advertised 40W wireless charging. vivo India store |
| Size and weight | 6.72-inch display; weight was not stated in the cited specifications. realme specifications | 6.31-inch display, 191g and 7.99mm thick. vivo India store |
| Durability and software support | 91mobiles lists Android 15 and two years of OS and three years of security updates, but this policy should be confirmed with realme before relying on it. 91mobiles comparison | vivo states IP68/IP69 protection and advertises five years of OS upgrades and seven years of security updates. This is the manufacturer’s stated policy. vivo product page |
How the two phones differ in everyday use
Screen size and handling
The P3x’s 6.72-inch display gives it the larger screen, which may suit reading, video and other tasks where screen area matters. The X300 FE’s 6.31-inch display makes it the more compact option on the published dimensions. A smaller display is not proof of a particular one-handed experience, but it is the clearer fit if you want a phone that takes up less space.
Processing and cameras
On paper, the X300 FE has the higher-tier processor: vivo lists a Snapdragon 8 Gen 5, while realme lists a Dimensity 6400. That specification difference does not establish a particular real-world speed or gaming result; the cited information is product specification, not a hands-on test.
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The X300 FE also has more camera options on its spec sheet, including a dedicated 50MP telephoto camera with OIS and a 50MP autofocus front camera. The P3x has a 50MP main camera, with 91mobiles listing an additional 2MP depth camera. The megapixel counts and module list do not, by themselves, establish comparative photo quality.
Battery, charging and durability
The stated typical battery capacities are 6000mAh for the P3x and 6500mAh for the X300 FE. These figures alone do not establish which phone lasts longer in use. The X300 FE lists faster wired charging and wireless charging; realme says the P3x supports 45W charging and includes its adapter in the box. vivo also states IP68/IP69 protection for the X300 FE.
Price difference: why the listings do not make a stable comparison
At the time its India store page was accessed on October 7, 2026, vivo displayed ₹94,999 for the selected X300 FE 12GB/256GB configuration, with an MRP of ₹119,999. On the same date, 91mobiles listed ₹12,999 at Flipkart for the P3x and ₹89,999 at Amazon for the X300 FE. The seller, configuration and pricing context differ, so subtracting these figures would not produce a dependable current price difference.
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- For USA Buyers: This Smartphone is not compatible/will not work with any CDMA Networks including: VERIZON, SPRINT, US CELLULAR. Please check with your network provider for 3G or 4G/LTE compatibility check before you purchase.
- Dual-SIM, Network Compatibility, SIM CARD 1 [2G : GSM 850 / 900 / 1800 / 1900 and/or 3G : WCDMA 850(B5) / 900(B8) / 2100(B1) and/or 4G : FDD-LTE 700(B28) / 800(B20) / 850(B5) / 900(B8) / 1700|2100(B4) / 1800(B3) / 1900(B2) / 2100(B1) / 2600(B7): TDD-LTE 2300(B40) / 2500(B41) / 2600(B38)] SIM CARD 2 [2G: GSM 850 / 900 / 1800 / 1900]
- 6.6 inches, IPS LCD, 1080 x 2400 pixels, Corning Gorilla Glass 5
- 256GB Storage, 12GB RAM
- Android 10, Realme UI, Qualcomm SM8150 Snapdragon 855+ (7 nm), Octa-core (1x2.96 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.78 GHz Kryo 485)
Android Central separately reported an India launch price of ₹79,999 for the X300 FE in its review; that is historical launch-price context, not a current quote. Android Central review
Before buying, compare the live listing for the exact RAM and storage variant, seller, included offers and delivery availability. The official realme specification page does not establish today’s P3x selling price.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Which phone should you buy?
Choose the realme P3x if
- You want a larger screen and are prioritizing a lower purchase price.
- The 6GB/128GB or 8GB/128GB configuration meets your needs.
- You want the included case and 45W adapter listed by realme; check the specific box contents and seller listing when ordering. realme specifications
Choose the vivo X300 FE if
- You prefer the more compact 6.31-inch phone.
- You value the listed higher-tier processor and dedicated telephoto camera.
- You want the higher-resolution autofocus front camera, faster charging options, or vivo’s advertised update period.
- You are shopping in the premium price bracket reflected by vivo’s store snapshot, while checking the live price for the exact configuration.
Is the vivo ZEISS telephoto extender included?
No. vivo says the ZEISS Telephoto Extender Gen 2 is compatible with the X300 FE and must be purchased separately. The official product page describes it as a 200mm-equivalent accessory weighing 153g. vivo X300 FE product page
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
