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The realme 15x 5G is the larger-screen, higher-capacity-battery option; the vivo X300 FE is the smaller, sharper-screen phone with a higher-tier listed chipset and dedicated telephoto camera. They sit in very different price tiers in India, but the displayed figures below are for different memory configurations and should not be treated as a like-for-like price gap.
India prices: compare the same configuration and date
Prices shown by official stores can change, and the available figures differ by variant and price type. The following figures were displayed or announced in India in 2026; check the live listing before ordering.
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| Phone and configuration | Price figure | What it represents |
|---|---|---|
| realme 15x 5G, 8GB+256GB | ₹27,999 selling price; ₹33,999 MRP | realme India Store display when accessed in 2026. realme India Store |
| vivo X300 FE, 12GB+256GB | ₹94,999 | vivo India Store display when accessed in 2026. Its 12GB+256GB launch price was ₹79,999; a later announcement listed ₹89,999. These are distinct historical announcement figures, not the live store display. vivo India Store · vivo launch announcement · vivo variant announcement |
| vivo X300 FE, 8GB+256GB | ₹84,999 | Price in vivo’s later variant announcement in 2026. vivo variant announcement |
| vivo X300 FE, 12GB+512GB | ₹89,999 at launch; ₹99,999 in the later announcement | Historical announcement prices in India, not a live-store quote. vivo launch announcement · vivo variant announcement |
The realme store lists 6GB+128GB, 8GB+128GB and 8GB+256GB configurations; vivo lists 8GB+256GB, 12GB+256GB and 12GB+512GB. The ₹27,999 and ₹94,999 store displays compare 8GB+256GB realme with 12GB+256GB vivo, and may reflect different promotions. They do not establish a single, stable price difference. Compare the same RAM/storage tier where available, note the date and seller, and distinguish a selling price from MRP or an older announced price.
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How the specifications compare
| Category | realme 15x 5G | vivo X300 FE | Practical distinction |
|---|---|---|---|
| Display | 6.8-inch HD+ (1570×720), up to 144Hz | 6.31-inch AMOLED (2640×1216), 120Hz, 460 PPI | realme lists the larger screen and higher refresh-rate ceiling; vivo lists AMOLED and substantially higher pixel density. realme specifications · vivo specifications |
| Chipset | MediaTek Dimensity 6300, 6nm, up to 2.4GHz | Snapdragon 8 Gen 5, 3nm | The listed platforms are in different specification tiers, but these figures are not a measured head-to-head speed result. realme specifications · vivo specifications |
| Battery and wired charging | 7,000mAh typical; 6,820mAh minimum; 60W SUPERVOOC | 6,500mAh typical; 6,350mAh rated minimum; 90W FlashCharge | realme lists greater battery capacity; vivo lists greater charging wattage. Neither specification establishes real-world battery life or charging time. realme specifications · vivo specifications |
| Rear cameras | 50MP Sony IMX852 main camera | 50MP OIS main, 50MP OIS telephoto and 8MP wide cameras | vivo lists dedicated telephoto and wide modules in addition to its main camera. Megapixel counts alone do not show which phone takes better photos. realme specifications · vivo specifications |
| Front camera | 50MP, OV50D40 listed | 50MP with autofocus listed | Both list 50MP front cameras; vivo explicitly lists autofocus. realme specifications · vivo specifications |
| Durability rating | Markets IP69 Pro; specifications discuss IP66/68/69 compliance and additional claims | IP68 and IP69 | These are manufacturer claims with different wording and caveats, not a guarantee that either phone is safe for routine immersion. realme specifications · vivo specifications |
| Software listed | realme UI 6.0 based on Android 15 | OriginOS 6 based on Android 16 | The listed Android versions differ; comparable software-support periods are not established by these specifications. realme specifications · vivo specifications |
| Dimensions and weight | Approx. 166.07×77.93×8.28mm; 212g | 150.83×71.76×7.99mm; 191g | vivo lists a shorter, narrower and lighter device; realme has the larger display. realme specifications · vivo specifications |
Which phone fits your priorities?
Choose around screen size and portability
- The realme 15x’s 6.8-inch screen is the fit to consider if you prefer more viewing area and a listed refresh rate of up to 144Hz. Its HD+ resolution is lower than vivo’s.
- The vivo X300 FE’s 6.31-inch AMOLED panel has higher listed resolution and pixel density, in a smaller, lighter body. Its refresh rate is 120Hz.
Set expectations for performance claims
The Dimensity 6300 and Snapdragon 8 Gen 5 specifications indicate different platform tiers on paper, but no independent benchmark comparing these two exact phones is established here. A chipset name alone cannot quantify performance in a particular game, app, or sustained workload.
#1 Best Overall
- For USA Buyers : This Smartphone is compatible/will work with any GSM Networks such as AT&T, T-Mobile. For exact 2G GSM, 3G, 4G/LTE compatibility, please check with your network provider in advance prior to your purchase. This phone WILL NOT WORK with any CDMA Networks such as VERIZON, SPRINT, US CELLULAR.
- Dual-SIM, Network Compatibility, SIM CARD 1 AND 2 [2G : GSM 850 / 900 / 1800 / 1900 and/or 3G : WCDMA 800(B6) / 800(B19) / 850(B5) / 900(B8) / 1700|2100(B4) / 1900(B2) / 2100(B1) and/or 4G : LTE FDD 700(B12) / 700(B13) / 700(B17) / 700(B28) / 800(B20) / 850(B5) / 850(B18) / 850(B19) / 850(B26) / 900(B8) / 1700|2100(B4) / 1800(B3) / 1900(B2) / 2100(B1) / 2100(B66) / 2600(B7) : LTE TDD 2300(B40) / 2500(B41) / 2600(B38) and/or 5G : NR n1/2/3/5/7/8/20/26/28/38/40/41/77/78/66]
- 6.67 inches, IPS LCD, 720 x 1604 pixels
- 256GB Storage, 8GB RAM, microSDXC (uses shared SIM slot)
- Android 15, Realme UI 6.0, Mediatek Dimensity 6300 (6 nm), Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
Match camera hardware to the shots you take
The realme lists a 50MP main rear camera. The vivo adds a 50MP OIS telephoto and an 8MP wide camera alongside its 50MP OIS main camera, giving it more listed rear-camera roles. That is a hardware distinction, not evidence of superior image quality.
vivo’s launch announcement says its ZEISS Telephoto Extender Gen 2 provides a 200mm-equivalent focal length. The extender and accessories kit are sold separately, are not in the standard phone box, and are stated to work only with the X300 FE. Confirm local availability and price with the seller. vivo launch announcement
Weigh capacity against charging wattage
realme publishes the larger typical battery capacity; vivo publishes the higher wired charging wattage. Battery capacity and charger wattage cannot by themselves tell you which will last longer in your use or how long either takes to charge.
Rank #2
- 6.78 inches, AMOLED, 1B colors, 6.78 inches
- 256GB Storage, 8GB RAM
- Android 16, Mediatek Dimensity 7300 Max (4 nm), Mediatek Dimensity 7300 Max (4 nm)
- Rear: 200 MP, f/1.9, 23mm (wide), 1/1.56", 0.5µm, dual-pixel PDAF, OIS, 8 MP, 112˚, (ultrawide), 1/4.0", 1.12µm, Front: 50 MP, f/2.4, 23mm (wide), 1/2.88", 0.61µm
Memory, SIM and what comes in the box
realme lists 6GB or 8GB RAM and 128GB or 256GB storage, up to 10GB dynamic RAM, and a microSD-capable dual-card tray for either dual SIM or SIM plus memory card. Its listed box contents are the phone, USB Type-C cable, 80W adapter, protective case, SIM tool and screen film. realme specifications
vivo lists 8GB+256GB, 12GB+256GB and 12GB+512GB configurations with LPDDR5X Ultra RAM and UFS 4.1 storage; ROM expansion is not supported. The India listing describes two nano-SIM slots and also lists SIM/eSIM combinations. Its box contents include a case, applied protective film, USB power adapter and Type-C cable. vivo specifications · vivo India Store
Water resistance and purchase checks
Do not treat an IP rating as permission for everyday underwater use. realme cautions that water resistance can diminish with wear, advises against immersion in daily use, and excludes liquid damage from warranty. Review the exact regional warranty terms and care guidance for either device before relying on its rating. realme specifications · vivo specifications
Quick Recap
- Check the live India price for the exact RAM/storage variant and whether the displayed amount is a sale price, MRP or announced price.
- Confirm network bands, eSIM support, included charger, warranty coverage and software-update commitment for the specific regional model and seller.
- For the X300 FE telephoto extender, verify stock and accessory-kit pricing separately.
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.
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