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The vivo X300 FE and Xiaomi Redmi Note 15 SE 5G target different priorities: the vivo is smaller and lists a higher-tier chipset plus telephoto and wide cameras, while the Redmi has a much larger display and microSD expansion. Their current price gap cannot be stated reliably from the available official listings: vivo’s store price differs from its launch price, and Xiaomi’s reviewed pages do not establish a live checkout price.

At a glance: the main differences

Feature vivo X300 FE Xiaomi Redmi Note 15 SE 5G
Processor and memory Snapdragon 8 Gen 5; LPDDR5X Ultra; UFS 4.1. Official specifications list 8GB+256GB and 12GB+512GB; the vivo store also displays 12GB+256GB. Snapdragon 6 Gen 3; LPDDR4X; UFS 2.2. Listed configurations are 6GB+128GB, 8GB+128GB and 8GB+256GB, with microSD expansion up to 1TB, subject to compatibility.
Display 6.31-inch AMOLED, 2640×1216, 120Hz; listed local peak brightness of 5000 nits. 6.77-inch curved AMOLED, 2392×1080, up to 120Hz; listed peak brightness of 3200 nits.
Dimensions and weight 150.83×71.76×7.99mm; 191g. 164×75.42mm; 7.35–7.82mm thick; 178g for black and white, or 182g for Crimson.
Rear cameras 50MP main with OIS, 50MP telephoto with OIS, and 8MP wide camera. 50MP Light Fusion 400 main and 2MP depth camera.
Front camera 50MP autofocus. 20MP.
Battery and charging 6500mAh typical (6350mAh rated minimum); 90W FlashCharge, with maximum supported charging requiring the original charger and cable. 5800mAh typical; 45W Turbo Charging, with a charger in the box.
Water and dust resistance IP68 and IP69 ratings, as listed by vivo. IP65 and IP66 ratings; Xiaomi specifies lab conditions.
Software and stated support Android 16 with OriginOS 6. vivo says it will provide five years of OS upgrades and seven years of security updates. Android 15 with HyperOS 3. Xiaomi says it will provide four years of OS updates and six years of security patches.

These are manufacturer specifications, not results from a head-to-head test. In particular, chipset and storage differences do not establish a measured performance gap; listed peak-brightness figures may also use different measurement methods. vivo X300 FE specifications · Xiaomi Redmi Note 15 SE 5G specifications

Which phone is smaller and easier to handle?

The X300 FE is the more compact option by a clear margin: its 6.31-inch screen and 150.83×71.76mm body are substantially narrower and shorter than the Redmi’s 6.77-inch screen and 164×75.42mm body. The surprising trade-off is weight: vivo lists its smaller phone at 191g, while Xiaomi lists the larger Redmi at 178g for black and white or 182g for Crimson.

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Choose the vivo if one-handed reach and pocket-friendly dimensions matter most. Choose the Redmi if you prefer more screen area for reading, video or multitasking and are comfortable with a wider phone. Those are differences in listed size and weight, not a claim about how either feels in every hand.

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How do their processors, storage and displays compare?

Chip and storage tiers

On paper, the X300 FE has the more advanced platform: Snapdragon 8 Gen 5 with LPDDR5X Ultra memory and UFS 4.1 storage, against the Redmi’s Snapdragon 6 Gen 3, LPDDR4X memory and UFS 2.2 storage. These specifications indicate different hardware tiers, but they do not tell you how much faster one feels in a particular app or game. No independent comparative benchmark is established here.

The Redmi offers a practical storage distinction: its listed configurations include microSD expansion up to 1TB, subject to compatibility. vivo’s listed X300 FE configurations rely on internal storage. Check the exact regional variant before buying, especially because the vivo specifications page and store show different 12GB+ storage combinations.

Screen size and brightness figures

The Redmi gives you a larger, curved 6.77-inch AMOLED panel; the vivo uses a smaller 6.31-inch AMOLED panel with a higher listed resolution. Both manufacturers list refresh rates up to 120Hz. vivo states a local peak of 5000 nits and Xiaomi a peak of 3200 nits, but peak figures from different manufacturers are not necessarily measured on the same basis, so they do not establish a controlled brightness winner.

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Are the cameras equivalent?

No. Their rear camera arrangements are notably different. vivo lists a stabilized main camera, a stabilized telephoto camera and a wide camera. Xiaomi lists a 50MP main camera and a 2MP depth camera. That makes the vivo’s listed lens selection more versatile on paper, particularly if you want a dedicated telephoto option; it does not prove that its photos are better in every scene.

For selfies, vivo lists a 50MP autofocus front camera and Xiaomi a 20MP front camera. vivo lists 8K, 4K and 1080p video recording, while Xiaomi lists rear 4K recording at 30fps. Pixel counts and recording modes alone cannot establish image quality, stabilization performance or low-light results; no independent head-to-head camera test is available here. vivo camera specifications · Xiaomi camera specifications

Which has the bigger battery, and which charges faster?

vivo lists a 6500mAh typical battery, with a 6350mAh rated minimum, and 90W FlashCharge. The maximum supported charging rate requires vivo’s original charger and cable. Xiaomi lists a 5800mAh typical battery and 45W Turbo Charging, and says a charger is included in the box.

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  • PROFESSIONAL V-SLR CAMERA SYSTEM — 3+2 Z EISS Master Lens Array with dual 200MP sensors (1/1.12″ S ONY LYTIA 901 main + 200MP 85mm gimbal-stabilized telephoto) and a 50MP ultrawide. Covering 14mm to 400mm full focal range with CIPA 7.0-level stabilization. This is the original Chinese version – fully unlocked and ready for global use. Every shot delivers Z EISS natural color science.
  • IMMERSIVE 2K DISPLAY — 6.82-inch 2K Z EISS Master Color AMOLED flat display with 1-144Hz LTPO adaptive refresh rate. Peak brightness 4500nits for outdoor visibility, supports Dolby Vision, HDR 10+, and Netflix HDR. 2160Hz PWM dimming + full-range DC dimming for eye protection – perfect for gaming and streaming.
  • FLAGSHIP PERFORMANCE — Snapdragon 8 Elite Gen 5 (TSMC 3nm, up to 4.6GHz). Ice Vein Fluid VC cooling system. Runs Funtouch OS (Chinese version) with full GOOG Play Services pre-installed, so you get a clean Android 16 experience with all US apps working seamlessly.
  • ALL-DAY BATTERY — 6600mAh battery. 100W wired FlashCharge (0-100% in ~30 min) + 50W wireless FlashCharge. Includes C-to-C charger. IP68/IP69 dust/water resistance. The Chinese version retains the original high-capacity battery and fast charging protocol – no regional downgrade.

The capacity and charging figures favor the vivo on paper, but they do not establish which phone lasts longer between charges. Actual battery life depends on usage and conditions, and there is no comparative endurance test established here. vivo battery and charging details · Xiaomi battery and charging details

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How much do they cost in India?

There is no reliable current price difference to calculate from the official information reviewed. vivo’s launch prices and a later store listing do not match, while Xiaomi’s reviewed product and specification pages do not provide a verified live purchase price.

Phone and listing Price information What it represents
vivo X300 FE, launch announcement ₹79,999 for 12GB+256GB; ₹89,999 for 12GB+512GB. Launch prices in vivo India’s announcement dated May 14, 2026. Launch offers had eligibility and time limits, so these figures do not include a universal offer-adjusted price.
vivo X300 FE, official store ₹94,999 displayed for the selected Lilac Purple 12GB+256GB configuration; MRP ₹119,999. Store snapshot accessed October 7, 2026, not the launch MSRP. The listing can change.
Xiaomi Redmi Note 15 SE 5G Current live price: not stated (Xiaomi India product and specification pages reviewed). The product page describes the phone as under ₹20K, but that wording does not establish an exact current checkout price.

For a fair comparison, check the same day’s listings for matching storage configurations and compare the final payable amounts after any bank or exchange conditions. Do not subtract a Redmi price from either vivo figure without confirming the Redmi’s current price and the applicable variant. vivo India launch announcement, May 14, 2026 · vivo India store listing · Xiaomi Redmi Note 15 SE 5G product page

Which one should you choose?

Choose the vivo X300 FE if

  • You want a compact phone rather than a large-screen device.
  • You prioritize the higher-tier chipset and memory and storage specifications listed by vivo.
  • You want dedicated telephoto and wide rear cameras in addition to a main camera.
  • You value the larger stated battery capacity and higher stated charging rate, while recognizing that these figures do not prove real-world runtime.

Choose the Xiaomi Redmi Note 15 SE 5G if

  • You want a substantially larger display.
  • You want the option of microSD storage expansion, subject to compatibility.
  • You prefer to evaluate a phone positioned in a lower hardware tier, but want to confirm its current price from a retailer before deciding.

Both manufacturers publish long software-support commitments, but they differ: vivo states five years of OS upgrades and seven years of security updates; Xiaomi states four years of OS updates and six years of security patches. Treat these as manufacturer commitments rather than independently verified update histories.

Is the vivo telephoto extender included?

No. vivo said its ZEISS Telephoto Extender Gen 2 was sold separately, priced at ₹15,999 at launch, and compatible only with the X300 FE. That is a launch price, not a confirmation of current availability or terms. vivo’s announcement described it as “Only compatible with vivo X300 FE and available at select retailers.” vivo India launch announcement

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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.