BeastCompare

vivo iQOO 15 Ultra 5G vs Xiaomi Redmi K100 Pro Max 5G: Which One Should You Buy?

These two are too close to call on BeastScore — the right choice depends on what matters to you.

Head-to-head
Comparing 2 devicesSwipe ⇄
Vivo

vivo iQOO 15 Ultra 5G

vivo iQOO 15 Ultra 5G
89/ 100
Launch pricePrice on request
Xiaomi

Xiaomi Redmi K100 Pro Max 5G

Xiaomi Redmi K100 Pro Max 5G
89/ 100
Launch pricePrice on request
Head-to-head

Too close to call: 0 of 5 categories each

Here's exactly where each phone is stronger.

vivo iQOO 15 Ultra 5G
vivo iQOO 15 Ultra 5G
0 wins
Xiaomi Redmi K100 Pro Max 5G
Xiaomi Redmi K100 Pro Max 5G
0 wins
At a glance

Bigger shape = better phone.

SpeedCameraBatteryDisplayValue
vivo iQOO 15 Ultra 5GXiaomi Redmi K100 Pro Max 5G
Category winners

Scores out of 100. How we score

  • SpeedTie
    95
    95
  • CameraTie
    80
    80
  • VideoNot enough data
  • SelfieNot enough data
  • BatteryTie
    95
    95
  • DisplayTie
    89
    89
  • ConnectivityNot enough data
  • SecurityNot enough data
  • ValueTie
    85
    85
Key differences
  • Xiaomi Redmi K100 Pro Max 5G has the bigger battery9,070 mAh vs 7,400 mAh
  • Xiaomi Redmi K100 Pro Max 5G has the bigger screen6.9" vs 6.85"
  • vivo iQOO 15 Ultra 5G has more RAM24 GB vs 16 GB
See all specs ↓

Why buy each phone

Swipe ⇄
Reasons to buy vivo iQOO 15 Ultra 5G
  • ✓6.85" display at 120 Hz
Reasons to buy Xiaomi Redmi K100 Pro Max 5G
  • ✓Bigger 9,070 mAh battery (+1,670 mAh)
  • ✓6.9" display at 120 Hz

Full specifications

Swipe ⇄
Specificationvivo iQOO 15 Ultra 5GXiaomi Redmi K100 Pro Max 5G
1. Display & Screen
Screen typeAMOLEDAMOLED
Screen Size6.85"6.9"
Resolution & DensityFHD+ / LTPO AMOLED FHD+ / LTPO AMOLED
Refresh Rate120 Hz120 Hz
BrightnessN/AN/A
Screen ProtectionNot listedNot listed
2. Platform & Performance
Chipset / ProcessorSnapdragon 8 Elite Gen 5 Snapdragon 8 Elite Gen 5
CPU CoresNot listedNot listed
GPU GraphicsNot listedNot listed
Operating SystemAndroid Android
3. Memory & Storage
RAM Memory24 GB LPDDR16 GB LPDDR
Internal Storage1024 GB512 GB
Storage SpeedNot listedNot listed
Card SlotNoNo
4. Main Camera Optics
Primary Cameraundefined MP, Triple Camera Systemundefined MP, Triple Camera System
Telephoto ZoomNone (digital zoom only)None (digital zoom only)
Ultrawide CameraN/AN/A
LiDAR / DepthNoneNone
5. Video
Main Camera Video
Not listed
Not listed
Front Video
Not listed
Not listed
6. Selfie Camera
Selfie Lensundefined MPundefined MP
7. Body & Dimensions
DimensionsN/AN/A
WeightN/AN/A
Build MaterialsNot listedNot listed
SIM TypeNot listedNot listed
Water ResistanceNot listedNot listed
8. Battery & Charging
Battery Capacity7,400 mAh9,070 mAh
Wired Fast ChargingFast chargingFast charging
Wireless ChargingNot listedNot listed
Reverse ChargingNot listedNot listed
9. Sound & Audio
LoudspeakerNot listedNot listed
3.5mm Headphone JackNoNo
10. Connectivity
Wi-Fi StandardNot listedNot listed
BluetoothNot listedNot listed
USB Port & SpeedNot listedNot listed
NFCYesYes
11. Sensors & Security
SensorsNot listedNot listed
Satellite FeaturesNot listedNot listed
12. Colors & Overview
ColorsNot listedNot listed
Launch PricePrice on requestPrice on request
Our verdict

vivo iQOO 15 Ultra 5G and Xiaomi Redmi K100 Pro Max 5G are evenly matched

It's a close call. Pick the vivo iQOO 15 Ultra 5G for its more RAM (24 GB vs 16 GB), or the Xiaomi Redmi K100 Pro Max 5G for its bigger battery (9,070 mAh vs 7,400 mAh) and bigger screen (6.9" vs 6.85").

Buy vivo iQOO 15 Ultra 5G if you want

More RAM: 24 GB vs 16 GB

Buy Xiaomi Redmi K100 Pro Max 5G if you want

Larger battery: 9,070 mAh vs 7,400 mAh

Common questions

Which is better: vivo iQOO 15 Ultra 5G or Xiaomi Redmi K100 Pro Max 5G?

It's a close call. Pick the vivo iQOO 15 Ultra 5G for its more RAM (24 GB vs 16 GB), or the Xiaomi Redmi K100 Pro Max 5G for its bigger battery (9,070 mAh vs 7,400 mAh) and bigger screen (6.9" vs 6.85"). BeastScore: vivo iQOO 15 Ultra 5G 89.3/100, Xiaomi Redmi K100 Pro Max 5G 89.3/100.

What are the main battery and display differences between vivo iQOO 15 Ultra 5G and Xiaomi Redmi K100 Pro Max 5G?

vivo iQOO 15 Ultra 5G has a 6.85-inch display and 7400 mAh battery. Xiaomi Redmi K100 Pro Max 5G has a 6.9-inch display and 9070 mAh battery.

How do vivo iQOO 15 Ultra 5G and Xiaomi Redmi K100 Pro Max 5G compare for speed?

vivo iQOO 15 Ultra 5G scores 95/100 for performance; Xiaomi Redmi K100 Pro Max 5G scores 95/100.

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