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The best substitute depends on what you want to change. Choose the vivo X500 Pro for a smaller handset in the same family, the vivo X300 Ultra for a wider set of native focal lengths and optional extenders, the Xiaomi 17 Ultra for Leica-branded hardware with a 1-inch main sensor, or the OPPO Find X9 Ultra if a 300mm-equivalent teleconverter is your priority. These are specification-led alternatives, not a proven image-quality ranking: the available material does not provide a controlled, independent comparison of all four phones.

What the vivo X500 Pro Max is, and why you might replace it

vivo’s China product information lists the X500 Pro Max as a September 2026 release with a suggested starting price of CNY 6,999 for 12GB of RAM and 256GB of storage. That is a China suggested retail price, not a global price or a guaranteed street price. Other memory and storage configurations cost more, and availability, taxes, warranty terms and software can differ substantially outside China.

The defining specification is the camera system: vivo describes a 200MP ZEISS APO telephoto camera and support for an equivalent-400mm vivo ZEISS extender. The figures come from vivo’s launch material; they do not establish how the phone performs against competitors in independent photo or video testing.

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Size is another major differentiator. vivo’s comparison pages list a 6.85-inch 2K display for the Pro Max, compared with 6.36 inches for the X500 Pro and 6.59 inches for the X500. A large display can make framing and editing easier, but it also affects pocketability, weight and one-handed use. If the Pro Max’s physical size is the reason you are looking elsewhere, the X500 Pro is the most direct alternative. If you want a different camera philosophy, the three Ultra models are more relevant.

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The shortlist below uses manufacturer specifications and dated availability reporting. It does not claim that any model is universally best, nor does it infer image quality from megapixel counts alone.

At-a-glance comparison

Phone What is established Best fit Important qualification
vivo X500 Pro 6.36-inch display in vivo’s X500 comparison A smaller phone that stays within the X500 family The cited material does not state a complete camera, battery or weight comparison with the Pro Max
vivo X300 Ultra 14mm ultra-wide, 35mm documentary and 85mm telephoto cameras; optional 200mm- and 400mm-equivalent extenders; Photographer Kit Photographers who want several native perspectives and modular reach Accessory availability and compatibility are market-specific
Xiaomi 17 Ultra Leica-branded system, 50MP main camera with a 1-inch sensor and 200MP telephoto camera Buyers who prefer Xiaomi’s Leica imaging approach and a large main sensor The cited specifications do not provide a controlled comparison with vivo or OPPO
OPPO Find X9 Ultra OPPO describes a 300mm-equivalent teleconverter and 13× optical zoom Long-distance subjects when an add-on teleconverter is acceptable OPPO’s announcement names Singapore sales channels; availability elsewhere must be checked

For every model, verify the exact regional model number, network bands, operating-system language options, update policy, local warranty, return rights, charger configuration and accessory support before paying.

1. vivo X500 Pro: the sensible smaller-family alternative

Why it is the closest substitute

The X500 Pro is the natural choice when the Pro Max’s size is the problem but you still want vivo’s current X500 design and software family. vivo lists its screen at 6.36 inches, 0.49 inches smaller diagonally than the Pro Max’s 6.85-inch panel. That difference is large enough to change how the phone feels in a pocket and how easily you can reach controls with one hand.

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Staying in the same family can also reduce the learning curve. Menus, camera controls and accessory terminology are likely to be more familiar than on a rival platform, although the cited material does not establish identical software features or update schedules. Do not assume that a case, grip or telephoto accessory made for the Pro Max will fit the Pro; check the model-specific listing.

What the available specifications do not prove

The comparison pages establish the display-size distinction, but they do not provide a complete, independently measured table for camera output, battery endurance, charging, dimensions or weight. It would therefore be misleading to call the X500 Pro a smaller Pro Max in every respect. Treat it as the smaller in-family option, then confirm the exact camera and power specifications for the configuration sold in your country.

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Who should choose it

  • You want a substantially smaller screen than 6.85 inches.
  • You prefer to remain with vivo rather than learn a different camera interface.
  • You do not need the Pro Max’s stated 200MP APO telephoto and 400mm-equivalent extender support.

2. vivo X300 Ultra: the most flexible focal-length system

Native perspectives

vivo’s global X300 Ultra page lists three distinctive camera perspectives: a 14mm ultra-wide, a 35mm documentary camera and an 85mm telephoto camera. Those focal lengths cover very different jobs. Fourteen millimetres is suited to architecture, interiors and expansive landscapes; 35mm gives a natural-looking environmental perspective for street and documentary work; 85mm narrows the view for portraits and distant details without immediately relying on an add-on.

This arrangement is materially different from simply increasing a telephoto camera’s pixel count. It gives you a choice of perspective before you crop, which can be useful when you want a subject to relate to its surroundings or when an ultra-wide lens is the only way to fit a scene into the frame.

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Extenders and the Photographer Kit

The same product information describes optional telephoto extenders reaching 200mm and 400mm equivalent, plus a Photographer Kit. The kit and extenders turn the phone into a more modular system, but they also add cost, bulk and another compatibility check. Confirm whether the accessory is sold in your market, whether it is included in the package you are considering, and whether the mount or case is specific to the X300 Ultra.

An extender is not a free upgrade. It can change balance in the hand, make the camera slower to deploy and require more careful support at long focal lengths. If you mostly shoot people, food, interiors or nearby travel scenes, the native 14/35/85mm combination may matter more than the 400mm option.

Who should choose it

  • You value several deliberate focal lengths rather than one headline telephoto specification.
  • You photograph wildlife, sports or distant details and are willing to carry an accessory.
  • You want a vivo phone but prefer the X300 Ultra’s camera layout to the X500 Pro Max’s approach.

3. Xiaomi 17 Ultra: a Leica-branded, large-sensor alternative

Core camera hardware

Xiaomi’s global specifications list a 50MP main camera with a 1-inch sensor and a 200MP telephoto camera for the Xiaomi 17 Ultra. The system also carries Leica branding. A 1-inch main sensor is a meaningful hardware distinction because sensor area influences light gathering and depth-of-field potential, but the specification alone does not predict final image quality. Lens design, processing, stabilization, focus behavior and shooting conditions all matter.

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The 200MP figure on the telephoto is likewise a component specification, not a guarantee of sharper photographs than a lower-resolution rival. Compare the camera modes and focal lengths available in the exact regional model rather than selecting solely by megapixels.

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Why it may suit a different buyer

The Xiaomi option makes sense if you want a camera phone built around a Leica-branded experience and a large main sensor, rather than vivo’s ZEISS APO telephoto and extender ecosystem. It is also a credible choice for people already invested in Xiaomi’s software, accessories or account services. The supplied specifications do not establish equivalent display size, battery capacity, charging speed, dimensions or local support for every market, so those should be checked separately.

Who should choose it

  • The main camera and its 1-inch sensor are more important to you than an announced 400mm-equivalent accessory.
  • You prefer Leica-branded camera hardware and Xiaomi’s software environment.
  • You can obtain an official regional version with acceptable warranty and network compatibility.

4. OPPO Find X9 Ultra: an add-on route to 300mm

Teleconverter specification

In its April 21, 2026 announcement, OPPO describes a Find X9 Ultra teleconverter reaching 300mm equivalent and identifies 13× optical zoom. This is the clearest alternative for a buyer whose priority is long-range reach through a dedicated accessory rather than a smaller phone or a different main sensor.

A 300mm-equivalent view can help with wildlife, field sports, performances and architectural details that are physically far away. The practical result depends on light, stabilization, subject movement and how securely the converter is mounted. OPPO’s figure is a manufacturer specification; it is not an independent resolution or low-light test.

Availability and regional caution

OPPO’s announcement names Singapore retail channels. That does not establish availability in every other country. A dated September 21, 2026 launch report said the X500 series was China-exclusive at launch and noted UK availability for the Xiaomi 17 Ultra and OPPO Find X9 Ultra at that time; launch reporting is not a live inventory check.

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If you import the Find X9 Ultra, confirm cellular bands for your carrier, the software region and languages, contactless-payment support, update behavior, charger standards, return arrangements and whether the teleconverter is sold by an authorized local channel. An imported phone can be technically compatible yet difficult to repair or return.

Who should choose it

  • You specifically want a 300mm-equivalent accessory and accept the extra hardware.
  • Your subjects are distant enough that normal portrait or short telephoto views are insufficient.
  • You have verified official local sales or are comfortable with the risks of importing.
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How to choose by shooting priority

If the Pro Max is simply too large

Start with the vivo X500 Pro. Its 6.36-inch display is the only explicitly documented smaller-screen choice in the same X500 comparison. Then verify its camera hardware and physical dimensions for your market before assuming that every Pro Max feature carries over.

If you want the widest range of perspectives

Choose the vivo X300 Ultra if its 14mm, 35mm and 85mm native cameras match how you shoot. Add the 200mm or 400mm-equivalent extender only when you have a recurring need for distant subjects and are prepared for accessory cost and bulk.

If the main sensor matters most

Consider the Xiaomi 17 Ultra because Xiaomi explicitly lists a 1-inch 50MP main sensor. Use that as a hardware reason to investigate the phone, not as proof that it wins every lighting condition or focal length.

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If maximum reach is non-negotiable

Compare the OPPO Find X9 Ultra’s 300mm-equivalent teleconverter with vivo’s X300 Ultra extender options and the X500 Pro Max’s stated 400mm-equivalent support. Decide whether you prefer a 300mm or 400mm target, then check which accessory and mount are actually sold with the phone in your region.

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If local support is more important than a headline camera

Buy the model with an official regional warranty, compatible network bands and a return path you can use. A theoretically superior camera system is a poor choice if replacement parts, software language or the required extender are unavailable where you live.

Buying an imported or region-specific camera phone

Product pages and launch announcements do not answer every ownership question. Use this checklist before placing an order:

  1. Identify the exact model number. Storage tiers and regional variants can differ even when the retail name is the same.
  2. Check network compatibility. Compare the phone’s supported bands with every carrier you intend to use, including roaming bands.
  3. Confirm software region and language. Ask whether the device uses a China, global or another regional firmware build, and whether your required languages and app services are supported.
  4. Read the warranty terms. Determine whether the manufacturer will service an imported unit in your country or whether the seller alone is responsible.
  5. Check return and repair logistics. A cross-border return can cost more than expected and may require customs documentation.
  6. Verify the charger and plug. Confirm the included charger’s connector, voltage compatibility and whether the advertised charging rate requires a particular adapter.
  7. Match accessories to the model. Teleconverters, cases, grips and Photographer Kits may be model-specific and may not be included in the phone box.
  8. Check stock at the moment of purchase. The dated availability notes above are not a guarantee of current inventory.

How to compare camera specifications without overclaiming

Megapixels describe the number of photosites, not the complete photographic result. A 200MP telephoto can be useful for cropping, but processing, lens quality, stabilization and light determine whether that potential survives in a real photograph. Likewise, the Xiaomi 17 Ultra’s 1-inch main sensor is an important hardware fact but not an independent low-light verdict.

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Focal length deserves equal attention. A 14mm ultra-wide, 35mm documentary lens and 85mm telephoto produce different relationships between subject and background. An extender changes the system’s physical handling and may be less convenient than a built-in camera for spontaneous shots. Before buying, list the subjects you actually photograph and mark the focal lengths you use most often.

Finally, separate a manufacturer’s optical-equivalent figure from a test result. The 400mm, 300mm and 13× values in this article are published specifications. They should help you narrow the field, not substitute for independent comparisons under the lighting and motion conditions you care about.

A practical decision path

  1. Set your non-negotiable size limit. If 6.85 inches is too large, investigate the 6.36-inch X500 Pro first.
  2. Choose your camera architecture. Decide between a smaller in-family phone, multiple native focal lengths, a large main sensor or an add-on long telephoto.
  3. Price the complete system. Include the phone, required extender, case, grip, charger and delivery or import charges—not only the handset price.
  4. Validate regional ownership. Confirm bands, firmware, warranty, returns and accessory stock before comparing camera specifications.
  5. Buy the configuration you can support. The best alternative is the one whose important camera feature you can use reliably in your market.

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.