Do these 3 things before closing this tab:
1Clear out junk files and repair common Windows errors2Scan for outdated or missing drivers - takes under a minute3Repair Windows errors before they cause bigger problemsThe vivo Y400 5G (India) has the stronger battery charging spec, with 90W against 45W, while the Xiaomi Redmi Note 15 Pro models have larger camera and display specs on paper. The catch is that “Redmi Note 15 Pro” names more than one phone. Xiaomi’s global model and its India 5G model use different processors, displays, and storage options, so the comparison only holds once you fix the market and the exact variant.
Start with the right Redmi Note 15 Pro
Xiaomi’s global specifications page describes a 6.77-inch AMOLED model with a MediaTek Helio G200-Ultra processor and a 2392 × 1080 panel. Xiaomi’s India product page for the Redmi Note 15 Pro 5G describes a different phone: a 6.83-inch 1.5K AMOLED display at 2772 × 1280, a MediaTek Dimensity 7400-Ultra, and a 6580mAh typical battery. Both are called Redmi Note 15 Pro, so a spec sheet that mixes figures from the two pages will be wrong for at least one of them.
As an Amazon Associate I earn from qualifying purchases.
The vivo side is simpler. The vivo Y400 5G covered here is the India model, and its official specifications list a Snapdragon 4 Gen 2, a 6.67-inch AMOLED panel at 2400 × 1080, and a 6000mAh battery with 90W charging.
Quick wins for a faster PC:
Scan for outdated or missing drivers - takes under a minuteDriver Scan →Clear out junk files and repair common Windows errorsFree Scan →Before you compare prices, confirm three things: the country you will buy in, the exact Xiaomi page that matches the listing you are looking at, and the storage size you want.
#1 Best Overall
- 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
Specifications side by side
The table uses each manufacturer’s own published figures. Where a page did not state a value, the cell says so rather than filling it in from another variant.
| 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 (the global 4G model) | 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; other rear camera details not stated on the indexed page | 50MP main, 2MP secondary |
| Battery and charging | 6500mAh typical, 45W | 6580mAh typical, 45W | 6000mAh typical, 90W |
| Water and dust rating | Not stated on the global specifications page | IP66, IP68, IP69, IP69K (as promoted on the India page) | IP68 and IP69 (official specifications page) |
| Software | Not stated on the global specifications page; 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 on the indexed page | 8GB + 128GB or 8GB + 256GB |
None of these pages carries a publication date in the copy I checked, so treat every figure as the value on the live page at the time you read it.
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
Camera hardware: higher megapixels, unknown real-world result
The Redmi Note 15 Pro models list a 200MP main camera with optical image stabilisation, and the global model adds an 8MP ultra-wide. The vivo Y400 5G lists 50MP main and 2MP secondary cameras. The 200MP figure is a sensor resolution. It does not show how the phone handles low light, colour, or detail at normal viewing sizes, and no independent camera test is cited here, so the comparison has to stop at the hardware list.
The Tool Desk
Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →If photography is your main reason to buy, the more useful check is a side-by-side review of the exact model you are considering, with sample photos taken in the lighting you usually shoot in.
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
Battery and charging
This is where the two lines differ most clearly. The vivo Y400 5G has the smallest published battery of the three (6000mAh typical) but the fastest charging rating (90W). The Redmi Note 15 Pro models list larger batteries (6500mAh global, 6580mAh India 5G) with 45W charging.
These are manufacturer capacities and rated charging powers. They are not measured endurance, and the figures do not say how long either phone lasts on a charge or how fast it refills in practice. Compare the battery and charging numbers as specifications, and expect real-world results to depend on use and on the charger you actually use.
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
Display
All three configurations advertise AMOLED panels with refresh rates up to 120Hz, so refresh rate does not separate them. The difference is size and resolution. The Redmi Note 15 Pro 5G has the largest and sharpest panel listed, a 6.83-inch 1.5K screen. The global Redmi Note 15 Pro has the same refresh rate at 6.77 inches and 2392 × 1080. The vivo Y400 5G is the smallest, at 6.67 inches with 2400 × 1080.
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
Water and dust protection
The vivo Y400 5G lists IP68 and IP69. The Redmi Note 15 Pro 5G India page promotes IP66, IP68, IP69, and IP69K. Those ratings are tested under standardised conditions defined by the IEC standard and do not guarantee coverage for liquid damage in daily use. Xiaomi’s global page does not state a rating in the copy checked, so do not assume the India ratings apply to the global model. If you are buying the global version, look up its rating on the product page for your region. Read the warranty terms for water damage before relying on any rating.
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
Software
The Redmi Note 15 Pro 5G India page describes HyperOS 3 on Android 15. The vivo Y400 5G runs Android 15 with Funtouch OS 15. The global Redmi Note 15 Pro page does not state its software version, so confirm it for the exact model before you buy. Updates beyond the version listed on the box depend on the manufacturer’s policy for your model, and neither page states an update commitment.
Price difference: check before you compare
This article does not give a price difference. Prices change by country, storage size, colour, retailer, and offer, and the vivo store listings I checked were for specific India configurations that can change without notice. I also did not find a current, like-for-like Xiaomi India price for the same storage size. Comparing a 256GB model against a 512GB model, or a global price against an India price, produces a meaningless gap.
To work out the real difference, do the following on the day you buy:
- Choose the country and the exact model name from the Xiaomi or vivo product page.
- Match storage size. The vivo Y400 5G comes with 128GB or 256GB, and the Redmi Note 15 Pro lists 256GB and 512GB options on the global page, with 512GB on the India page.
- Note whether each price includes the charger. Confirm the in-box contents for each listing, since the 90W and 45W figures depend on the charger that ships with the phone or one you buy separately.
- Check the price on the official store and at least one local retailer, and record the date and any bundled offers.
Which one to choose
- Choose the Redmi Note 15 Pro 5G (India) if you want the largest and sharpest display and the bigger battery on paper, and you can find a price for the 512GB version that fits your budget.
- Choose the global Redmi Note 15 Pro if you are buying outside India and want the 200MP camera with an ultra-wide lens, provided the regional warranty and software terms meet your needs.
- Choose the vivo Y400 5G if fast charging at 90W, the IP68 and IP69 ratings, and a Snapdragon 4 Gen 2 platform match your priorities more closely than a larger display or battery.
Specifications settle only part of this decision. Camera quality, battery endurance, and performance under sustained use are not established by the manufacturer figures above, so review them before you commit.
Manufacturer figures come from Xiaomi’s global specifications page, Xiaomi India’s Redmi Note 15 Pro 5G product page, and vivo India’s Y400 5G specifications page. Verify them on the live pages before you buy.
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.
