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The answer depends on which Redmi Note 15 Pro you mean. Xiaomi sells materially different hardware under that name in different markets, so a comparison with the vivo Y400 5G only holds once the variant is fixed. On published specifications, the Xiaomi Redmi Note 15 Pro 5G listed on Xiaomi’s India product page has the larger, higher-resolution display, the bigger battery and the broader water and dust rating claim. The vivo Y400 5G (India) counters with 90W charging against Xiaomi’s 45W. The price difference cannot be stated from the material available for this comparison, and the method for checking it is set out below.
Which Redmi Note 15 Pro this comparison covers
Xiaomi’s global specifications page describes a Redmi Note 15 Pro with a 6.77-inch AMOLED display and a MediaTek Helio G200-Ultra processor. Xiaomi’s India product page describes a Redmi Note 15 Pro 5G with a 6.83-inch 1.5K display and a MediaTek Dimensity 7400-Ultra processor. These are not two versions of one phone. Before comparing, confirm which of these your country sells, because the displays, processors, battery ratings and durability claims differ.
The vivo side of this comparison is the vivo Y400 5G as listed on vivo’s India specifications page, which lists a Qualcomm Snapdragon 4 Gen 2 processor. The figures below use the global Xiaomi page, the India Xiaomi 5G page and the India vivo page, and each cell is labelled with its source.
Specifications side by side
| Axis | Redmi Note 15 Pro (Xiaomi global page) | Redmi Note 15 Pro 5G (Xiaomi India page) | vivo Y400 5G (vivo India page) |
|---|---|---|---|
| Processor | MediaTek Helio G200-Ultra | MediaTek Dimensity 7400-Ultra | Qualcomm Snapdragon 4 Gen 2 |
| Display | 6.77-inch AMOLED, 2392 × 1080, up to 120Hz | 6.83-inch AMOLED, 1.5K (2772 × 1280), up to 120Hz | 6.67-inch AMOLED, 2400 × 1080, up to 120Hz |
| Rear cameras | 200MP main with OIS, 8MP ultra-wide | 200MP main with OIS; additional camera details not stated on the indexed page | 50MP main, 2MP secondary |
| Battery (typical) and charging | 6500mAh, 45W | 6580mAh, 45W | 6000mAh, 90W |
| Water and dust rating | Not stated on the global specifications page | IP66, IP68, IP69, IP69K (as claimed by Xiaomi) | IP68 and IP69 (vivo specifications page) |
| Software | Not stated; confirm for your local variant | HyperOS 3 on Android 15 | Android 15 with Funtouch OS 15 |
| Memory and storage | 8GB + 256GB, 12GB + 256GB, 12GB + 512GB | 8GB + 512GB | 8GB + 128GB or 8GB + 256GB |
The Xiaomi India page and the vivo India page are both regional product pages. The Xiaomi global page is a separate configuration and should not be used to assign the India 5G durability claims to the global model.
#1 Best Overall
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- Dual SIM (nano SIM + nano SIM or nano SIM + eSIM) NO MICRO SD SLOT. 5G: n1/2/3/5/7/8/12/20/26/28/38/40/41/48/66/77/78 - 4G: LTE FDD: 1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B18/B19/B20/B26/B28/B32/B66 4G: LTE TDD: B38/B40/B41/B42/B48 - 3G: WCDMA: B1/B2/B4/B5/B6/B8/B19 - 2G: GSM: B2/B3/B5/B8
- 6.83" AMOLED displayResolution: 1.5K (2772 x 1280)Refresh rate: Up to 120HzTouch sampling rate: Up to 480HzInstantaneous touch sampling rate: 2560Hz*Activated in Game Turbo modeBrightness: 3200 nits peak brightnessBrightness: HBM 1800 nitsColor depth: 12bitContrast ratio: 8000000:1DCI- P3 wide color gamut447PPICorning Gorilla Glass Victus 2Sunlight displayHDR10+ | Dolby Vision16,000-step automatic brightness adjustment3840Hz PWM dimming｜TÜV Rheinland Low Blue Light (Hardware Solution) Certified | TÜV Rheinland Circadian Friendly Certified | TÜV Rheinland Flicker Free Certified
- MediaTek Dimensity 7400-Ultra4nm manufacturing process technologyCPU: Octa-core processor, up to 2.6GHzGPU: Mali-G615
- 200MP main cameraOptical Image Stabilization (OIS)0.56μm, 16in1, 2.24μmf/1.77P lens1/1.4" sensor size8MP ultra-wide cameraf/2.2Rear camera video recording4K at 30 fps1080p at 30/60 fps720p at 30 fps / Front Camera 20MP front camera1/4" sensor sizef/2.24P lensFront camera video recording1080p at 30/60 fps720p at 30 fps
Display
All three configurations use AMOLED panels with a refresh rate of up to 120Hz, so the difference lies in size and resolution. The Xiaomi India 5G model has the largest screen at 6.83 inches and the highest stated resolution at 2772 × 1280. The vivo Y400 5G uses a 6.67-inch panel at 2400 × 1080, and the Xiaomi global model is a 6.77-inch panel at 2392 × 1080. Pixel counts and panel sizes describe what the screen is built with; they do not measure brightness, colour accuracy or viewing quality, which none of these pages report.
Cameras
On paper, the Xiaomi models have the more ambitious main sensor. The global Redmi Note 15 Pro lists a 200MP main camera with optical image stabilisation and an 8MP ultra-wide camera. The India 5G model also lists a 200MP main camera with OIS, but the indexed page does not give its secondary camera details. The vivo Y400 5G lists a 50MP main camera and a 2MP secondary camera.
Rank #2
- USA MARKET ONLY WORK ON TMOBILE MINT TELLO OR ANY UNDER TMOBILE NETWORK PHONE NEEDS A SIM CARD ALREADY ACTIVATED ,OUTSIDE USA WORKS ANY GSM CARRIER SIM GSM FCC ID: 2AFZZRACCG
- SIM 1 + Hybrid (SIM or microSD)2G: GSM: 850 900 1800 1900MHz3G: WCDMA:1/2/4/5/84G: LTE FDD:1/2/3/4/5/7/8/12/13/17/20/26/28/664G: LTE TDD:38/40/41Bluetooth 5.3Wi-Fi Protocol: 802.11a/b/g/n/ac
- 6.67" AMOLED displayResolution: 2400 x 1080Refresh rate: Up to 120HzBrightness: 1800nits peak brightnessBrightness: 500 nits (typ), HBM 1200 nits (typ)Color depth: 10-bitContrast ratio: 5,000,000:1DCI- P3 wide color gamutCorning Gorilla Glass Victus 2Sunlight displayReading mode1920Hz PWM dimming｜TÜV Rheinland Low Blue Light (Hardware Solution) Certified | TÜV Rheinland Flicker Free Certified | TÜV Rheinland Circadian Friendly Certified
- Helio G100-Ultra6nm manufacturing processCPU: Octa-core processor, up to 2.2GHzGPU: Mali-G57 MC2
- 200MP main camera OISf/1.6516-in-1 binning into one large 2.24μm pixel1/1.4” sensor size7P lens8MP ultra-wide cameraf2.22MP macro cameraf2.4Rear camera video recording1080p at 60fps1080p at 30fps720p at 30fps / 32MP front cameraf/2.2Front camera video recording1080p at 30fps720p at 30fps
A higher megapixel count is not a reliable proxy for photo quality, since pixel binning, processing and lens quality all shape the final image. Neither the Xiaomi nor the vivo pages report camera test results, and no independent camera comparison is cited here, so the camera category cannot be ranked from these specifications.
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The vivo Y400 5G has the smallest rated battery, 6000mAh typical, but the fastest charging rating, 90W. The two Xiaomi models are rated at 6500mAh (global) and 6580mAh (India 5G), both with 45W charging. The capacities are listed as typical values, and the 90W and 45W figures are the maximum charging ratings published by each manufacturer. They are not measured charge times or battery-life results.
Rank #3
- USA MARKET ONLY WORK ON TMOBILE MINT TELLO OR ANY UNDER TMOBILE NETWORK PHONE NEEDS A SIM CARD ALREADY ACTIVATED ,OUTSIDE USA WORKS ANY GSM CARRIER SIM GSM FCC ID: 2AFZZRA8E
- Dual SIM (nano SIM + nano SIM or nano SIM + eSIM) (NoT MICRO SD SLOT) 5G: n1/2/3/5/7/8/20/28/38/40/41/48/66/77/78 / 4G: LTE FDD:1/2/3/4/5/7/8/12/13/17/18/19/20/26/28/32/66 -- 4G: LTE TDD:38/40/41/42/48 -- 3G: 1/2/4/5/6/8/19 -- 2G Quad Band - Bluetooth 5.4Wi-Fi: Wi-Fi 6/6E/Wi-Fi 5/Wi-Fi 4/802.11a/b/g Supports 2.4GHz Wi-Fi | 5GHz Wi-Fi Supports 2x2 MIMO，Wi-Fi Direct
- 6.83" CrystalRes AMOLED displayResolution: 1.5K (2772 x 1280)Refresh rate: Up to 120HzTouch sampling rate: Up to 480HzInstantaneous touch sampling rate: 2560Hz*Activated in Game Turbo modeBrightness: 3200 nits peak brightnessBrightness: HBM 1800 nitsColor depth: 12bitContrast ratio: 8000000:1DCI- P3 wide color gamut447PPICorning Gorilla Glass Victus 2Sunlight displayHDR10+ | Dolby Vision16,000-step automatic brightness adjustment3840Hz PWM dimming｜TÜV Rheinland Low Blue Light (Hardware Solution) Certified | TÜV Rheinland Circadian Friendly Certified | TÜV Rheinland Flicker Free Certified
- Snapdragon 7s Gen 44nm manufacturing process technologyCPU: Octa-core processor, up to 2.7GHzGPU: Adreno GPU
- 200MP main cameraOptical Image Stabilization (OIS)0.56μm, 16in1, 2.24μmf/1.77P lens1/1.4" sensor size8MP ultra-wide cameraf/2.2Rear camera video recording4K at 30 fps1080p at 30/60 fps720p at 30 fps - 32MP front camera1/3.6" sensor sizef/2.24P lensFront camera video recording1080p at 30/60 fps720p at 30 fps
In practical terms, the Xiaomi models will fill a larger battery at half the rated charging speed. Which trade-off matters more depends on how you charge. If you want the shortest time at a charger, the vivo rating is the stronger published figure. If you want a larger battery and accept slower top-ups, the Xiaomi India model’s specifications favour you. Check that the charger in the box matches the rating you are buying for; the included accessories are not established by these pages.
Processor, memory and software
Processors
The three phones use three different chipsets. The Xiaomi India 5G uses the MediaTek Dimensity 7400-Ultra, the global Xiaomi uses the Helio G200-Ultra, and the vivo uses the Snapdragon 4 Gen 2. The published specifications do not establish a performance winner, and benchmark results for these chips in these phones are not cited here.
Rank #4
- USA MARKET ONLY WORK ON TMOBILE MINT TELLO OR ANY UNDER TMOBILE NETWORK PHONE NEEDS A SIM CARD ALREADY ACTIVATED ,OUTSIDE USA WORKS ANY GSM CARRIER SIM GSM FCC ID: 2AFZZRA29G
- Dual SIM (nano SIM + nano SIM or nano SIM + eSIM) NO MICRO SD SLOT. 5G: n1/2/3/5/7/8/12/20/26/28/38/40/41/48/66/77/78 - 4G: LTE FDD: 1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B18/B19/B20/B26/B28/B32/B66 4G: LTE TDD: B38/B40/B41/B42/B48 - 3G: WCDMA: B1/B2/B4/B5/B6/B8/B19 - 2G: GSM: B2/B3/B5/B8
- 6.83" AMOLED displayResolution: 1.5K (2772 x 1280)Refresh rate: Up to 120HzTouch sampling rate: Up to 480HzInstantaneous touch sampling rate: 2560Hz*Activated in Game Turbo modeBrightness: 3200 nits peak brightnessBrightness: HBM 1800 nitsColor depth: 12bitContrast ratio: 8000000:1DCI- P3 wide color gamut447PPICorning Gorilla Glass Victus 2Sunlight displayHDR10+ | Dolby Vision16,000-step automatic brightness adjustment3840Hz PWM dimming｜TÜV Rheinland Low Blue Light (Hardware Solution) Certified | TÜV Rheinland Circadian Friendly Certified | TÜV Rheinland Flicker Free Certified
- MediaTek Dimensity 7400-Ultra4nm manufacturing process technologyCPU: Octa-core processor, up to 2.6GHzGPU: Mali-G615
- 200MP main cameraOptical Image Stabilization (OIS)0.56μm, 16in1, 2.24μmf/1.77P lens1/1.4" sensor size8MP ultra-wide cameraf/2.2Rear camera video recording4K at 30 fps1080p at 30/60 fps720p at 30 fps / Front Camera 20MP front camera1/4" sensor sizef/2.24P lensFront camera video recording1080p at 30/60 fps720p at 30 fps
Memory and storage
The global Xiaomi page lists three configurations: 8GB + 256GB, 12GB + 256GB and 12GB + 512GB. The India 5G page lists 8GB + 512GB. The vivo Y400 5G is offered as 8GB + 128GB or 8GB + 256GB. Comparing prices is only meaningful at the same storage size, which is why the price section below starts there.
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Software
The India Xiaomi 5G runs HyperOS 3 on Android 15. The vivo Y400 5G runs Android 15 with Funtouch OS 15. Xiaomi’s global page does not state its software version, so confirm it for the variant you are considering. Update policies are not described on these pages, so ask the retailer or manufacturer if long-term updates matter to you.
Best Value
- USA MARKET ONLY WORK ON TMOBILE MINT TELLO OR ANY UNDER TMOBILE NETWORK PHONE NEEDS A SIM CARD ALREADY ACTIVATED ,OUTSIDE USA WORKS ANY GSM CARRIER SIM GSM FCC ID: 2AFZZRA29G
- Dual SIM (nano SIM + nano SIM or nano SIM + eSIM) NO MICRO SD SLOT. 5G: n1/2/3/5/7/8/12/20/26/28/38/40/41/48/66/77/78 - 4G: LTE FDD: 1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B18/B19/B20/B26/B28/B32/B66 4G: LTE TDD: B38/B40/B41/B42/B48 - 3G: WCDMA: B1/B2/B4/B5/B6/B8/B19 - 2G: GSM: B2/B3/B5/B8
- 6.83" AMOLED displayResolution: 1.5K (2772 x 1280)Refresh rate: Up to 120HzTouch sampling rate: Up to 480HzInstantaneous touch sampling rate: 2560Hz*Activated in Game Turbo modeBrightness: 3200 nits peak brightnessBrightness: HBM 1800 nitsColor depth: 12bitContrast ratio: 8000000:1DCI- P3 wide color gamut447PPICorning Gorilla Glass Victus 2Sunlight displayHDR10+ | Dolby Vision16,000-step automatic brightness adjustment3840Hz PWM dimming｜TÜV Rheinland Low Blue Light (Hardware Solution) Certified | TÜV Rheinland Circadian Friendly Certified | TÜV Rheinland Flicker Free Certified
- MediaTek Dimensity 7400-Ultra4nm manufacturing process technologyCPU: Octa-core processor, up to 2.6GHzGPU: Mali-G615
- 200MP main cameraOptical Image Stabilization (OIS)0.56μm, 16in1, 2.24μmf/1.77P lens1/1.4" sensor size8MP ultra-wide cameraf/2.2Rear camera video recording4K at 30 fps1080p at 30/60 fps720p at 30 fps / Front Camera 20MP front camera1/4" sensor sizef/2.24P lensFront camera video recording1080p at 30/60 fps720p at 30 fps
Water and dust ratings
The vivo Y400 5G is listed with IP68 and IP69. The India Xiaomi 5G page claims IP66, IP68, IP69 and IP69K, which is a broader set of ratings on paper. The global Xiaomi page does not state a rating, so do not assume the India claims apply to it.
IP ratings describe how the enclosure performed under standardised test conditions for dust and water ingress. They do not promise coverage for water damage, and most manufacturer warranties exclude liquid damage. Read the warranty terms for your country before relying on the rating.
Price difference: what can and cannot be stated
vivo’s India store listings show prices for specific Y400 5G configurations, but those prices vary by storage size, colour and offer, and they change over time. The material available for this comparison did not establish a current, like-for-like Xiaomi India price for the Redmi Note 15 Pro 5G. A price difference figure would therefore be unreliable, and none is stated here.
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- Pick the country and the exact Xiaomi model (global Redmi Note 15 Pro or India Redmi Note 15 Pro 5G).
- Choose the same storage size on both phones. The vivo Y400 5G at 8GB + 128GB and the Xiaomi at 8GB + 512GB are not a fair comparison.
- Check the official Xiaomi and vivo online stores and at least one authorised retailer in your country.
- Note any bank or exchange offers and whether they apply to both phones, then compare the net price.
- Record the date of each price, since listings can change within days.
Which to choose
- Choose the Xiaomi Redmi Note 15 Pro 5G (India) if you want the largest display, the highest rated battery capacity and the broader IP rating claim, and you accept 45W charging.
- Choose the vivo Y400 5G (India) if fast charging at 90W matters more than battery capacity, or if you prefer the IP68 and IP69 ratings with Funtouch OS 15.
- Check the global Redmi Note 15 Pro first if you are buying outside India, because its display, processor and rating details differ from the India 5G model.
If the price gap at matching storage is small, the Xiaomi India model offers more on paper. If the vivo is cheaper at the same storage, its faster charging rating and smaller screen become the deciding factors.
Quick Recap
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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.
