OPPO K15x vs Samsung Galaxy M08
Overall: OPPO K15x. Their chips, the Dimensity 6300 (mid-range) and the Helio G99 (mid-range), are close in speed. The K15x starts with more RAM (6 GB against 4 GB). The K15x has the bigger battery (6,500 mAh against 6,000 mAh). The K15x has faster wired charging (45 W against 25 W).
OPPO
K15x
Dimensity 6300
Samsung
Galaxy M08
Helio G99What matters to you?
Tap what you use your phone for. The overall pick then counts only those.
Overall: OPPO K15x
Better for everyday life. Score: K15x 1, Galaxy M08 0 (clear win 2, slight edge 1, same 0).
Backed by facts83% of areas
Pick this for…
Who wins for each way you use a phone. Tap a card for the evidence.
Social media
Chats, calls, lives and feeds
Same in practiceEither oneBenchmarksOfficialWhy? See the evidenceHide the evidence
Social media
Chats, calls, lives and feeds
- Everyday speed: Dimensity 6300 2.5 of 5, Helio G99 2.5 of 5.
- Memory: 6 GB against 4 GB, so more apps stay open when you switch between chats and feeds.
- Front camera video for calls and lives: 1080p@30fps against not listed.
Gaming
Light games to heavy 3D, online and offline
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Gaming
Light games to heavy 3D, online and offline
- Gaming power: Dimensity 6300 2 of 5, Helio G99 2 of 5.
- Graphics: Mali-G57 MC2 (6 nm) against Mali-G57 MC2 (6 nm).
- Screen: 120 Hz against 90 Hz.
- Light games run well on both. The gap shows in heavy 3D games. How long a phone holds its speed when hot needs testing, so it is not judged.
Camera and content creation
Photos, video recording and editing
Not enough infoToo little listed to call itOfficialBenchmarksWhy? See the evidenceHide the evidence
Camera and content creation
Photos, video recording and editing
- Video recording: 1080p@60fps against not listed.
- Front camera video: 1080p@30fps against not listed.
- Editing and export: Dimensity 6300 2 of 5, Helio G99 2 of 5. Storage: not listed for either phone.
- Photo and video quality need side-by-side testing, so we do not judge them from megapixels.
Work, study and AI
Learning, research, writing and AI assistants
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Work, study and AI
Learning, research, writing and AI assistants
- Heavy work: Dimensity 6300 2 of 5, Helio G99 2 of 5.
- Memory: 6 GB against 4 GB. On-phone AI features need plenty of memory; most AI assistants run online and work on any phone.
- Screen: 6.75″ IPS LCD against 6.7″ LCD.
Movies, music and streaming
YouTube, Netflix, sport, music and podcasts
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Movies, music and streaming
YouTube, Netflix, sport, music and podcasts
- Screen: 6.75″ IPS LCD against 6.7″ LCD.
- AV1 video decoding (smoother YouTube and Netflix, less battery): not listed against not listed.
- Sound: speakers not listed, against speakers not listed.
Everyday life
Maps, ride-hailing, payments and banking
Slight edgePick K15xOfficialWhy? See the evidenceHide the evidence
Everyday life
Maps, ride-hailing, payments and banking
- Tap to pay (NFC): yes against no.
- Location: single-band GPS against GPS bands not listed. Dual-band GPS stays accurate between tall buildings.
- GPS bands aren’t listed for both phones, so we compared tap to pay only.
Phone basics
What every use depends on, side by side.
Battery life
K15x6,500 mAh45 W charging
Galaxy M086,000 mAh25 W charging
Efficiency: Dimensity 6300 3 of 5, Helio G99 3 of 5
Storage
K15x128 GB / 256 GBType not published
Galaxy M0864 GBType not published
UFS opens apps and files far faster than eMMC
Speed
K15xDimensity 63006 GB RAM
Galaxy M08Helio G994 GB RAM
Everyday speed: 2.5 of 5 against 2.5 of 5
Screen
K15x6.75″ IPS LCD120 Hz
Galaxy M086.7″ LCD90 Hz
Bigger is not better; pick the size you like
Toughness
K15xIP64
Galaxy M08IP64
IP68 survives dust and a dunk in water
Years of updates
K15xNo promise publishedLaunched October 2026
Galaxy M08Until about 20326 Android upgrades, 6 years of security updates
From the maker’s written update promise
Side by side
Show differences only
| Spec | K15x | Galaxy M08 |
|---|---|---|
| Size | 6.75″ | 6.7″ |
| Type | IPS LCD | LCD |
| Resolution | 720 × 1570 | 720 × 1600 |
| Refresh rate | 120 Hz | 90 Hz |
| Peak brightness | 1125 nits | — |
| Spec | K15x | Galaxy M08 |
|---|---|---|
| Chipset | Dimensity 6300 | Helio G99 |
| RAM | 6 GB | 4 GB |
| Storage | 128 GB / 256 GB | 64 GB |
| Storage type | — | — |
| Spec | K15x | Galaxy M08 |
|---|---|---|
| Main camera | 13 MP | 50 MP |
| Zoom | None | None |
| Video recording | 1080p@60fps | — |
| Front camera | 5 MP | 8 MP |
| Front video | 1080p@30fps | — |
| Spec | K15x | Galaxy M08 |
|---|---|---|
| Capacity | 6500 mAh | 6000 mAh |
| Wired charging | 45 W | 25 W |
| Wireless charging | — | — |
| Spec | K15x | Galaxy M08 |
|---|---|---|
| Stereo speakers | — | — |
| Headphone jack | — | — |
| NFC (tap to pay) | Yes | No |
| Dual-band GPS | No | — |
| 5G | Yes | No |
| eSIM | No | — |
| Spec | K15x | Galaxy M08 |
|---|---|---|
| Weight | 212 g | 197 g |
| Thickness | 8.6 mm | 8 mm |
| Water resistance | IP64 | IP64 |
| Spec | K15x | Galaxy M08 |
|---|---|---|
| At launch | Android 16 | Android 17 |
| OS upgrades | Not stated | 6 years |
| Security updates | Not stated | Not stated |
Quick answers
- Is the K15x or the Galaxy M08 better for social media?
- For social media, there’s no real difference between them. Everyday speed: Dimensity 6300 2.5 of 5, Helio G99 2.5 of 5.
- Is the K15x or the Galaxy M08 better for gaming?
- For gaming, there’s no real difference between them. Gaming power: Dimensity 6300 2 of 5, Helio G99 2 of 5.
- Is the K15x or the Galaxy M08 better for camera and content creation?
- Too little is listed to call it for camera and content creation yet. Video recording: 1080p@60fps against not listed.
- Is the K15x or the Galaxy M08 better for work, study and ai?
- For work, study and ai, there’s no real difference between them. Heavy work: Dimensity 6300 2 of 5, Helio G99 2 of 5.
- Is the K15x or the Galaxy M08 better for movies, music and streaming?
- For movies, music and streaming, there’s no real difference between them. Screen: 6.75″ IPS LCD against 6.7″ LCD.
- Is the K15x or the Galaxy M08 better for everyday life?
- The K15x has a slight edge for everyday life. Tap to pay (NFC): yes against no.
What we don’t judge on
Security patch level, charging watts, megapixels, benchmark scores and guessed values.
- Security patch level and other software settings change with every update, so one reading can’t judge a phone. We use the maker’s written update promise.
- Charging watts, megapixels, screen size and weight are shown, never scored as better: faster charging doesn’t make a battery last longer, and more megapixels don’t make better photos.
- Chip estimates (1 to 5) come from published design facts: core design and year, graphics, manufacturing and video features. Photo quality and how long a phone holds its speed when hot need testing, so they aren’t judged.
- Values with no source show “not published” and stay out of the verdict.
OPPO K15x specsSamsung Galaxy M08 specsCompare with another phone