The Helio G91 is the more capable chipset on published specifications: it has newer CPU cores, stronger graphics hardware, support for higher-resolution and faster-refresh displays, and a more advanced video pipeline. Both are 4G platforms, and benchmark figures favor the G91, but they come from different devices and test conditions—not a controlled head-to-head test. A phone’s actual performance still depends on its design, memory, cooling, software, and screen.
Helio G25 vs Helio G91: specifications at a glance
| Specification | Helio G25 | Helio G91 |
|---|---|---|
| CPU | Eight Arm Cortex-A53 cores, up to 2 GHz | Eight cores: 2 × Cortex-A75 at 2 GHz and 6 × Cortex-A55 at 1.8 GHz, according to NanoReview |
| Manufacturing process | 12 nm, according to MediaTek | 12 nm, according to NanoReview; MediaTek’s retrieved specification fields do not list the process |
| GPU | IMG PowerVR GE8320, up to 650 MHz | Arm Mali-G52 MC2, up to 1 GHz |
| Memory support | MediaTek lists LPDDR3 and LPDDR4X. Its 2020 product brief specifies up to 6 GB LPDDR4X or DDR4, or up to 4 GB LPDDR3 | LPDDR4X, up to 8 GB, according to MediaTek |
| Display support | Up to 1600 × 720 | Up to 2520 × 1080 and 90 Hz |
| Storage | eMMC 5.1 | eMMC 5.1 |
| Camera support | Up to 21 MP single camera or 13 MP + 8 MP | MediaTek promotes 108 MP capability, while its specification field lists 16 MP + 16 MP or 64 MP |
| Video | 1080p at 30 fps encoding and playback | 2K at 30 fps encoding and playback; 1080p at 60 fps playback |
| Mobile network | 4G LTE; dual 4G SIM and VoLTE capabilities described | 4G LTE; dual 4G VoLTE described |
| Wi-Fi and Bluetooth | Wi-Fi 5 and Bluetooth 5.0 | Wi-Fi 5 and Bluetooth 5.0 on MediaTek’s official page |
These are platform capabilities, not a promise that every phone using the chip will include the maximum supported memory, screen, or camera. Sources: MediaTek Helio G25, MediaTek Helio G91, MediaTek Helio G25 Product Brief, and NanoReview Helio G91 specifications.
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Which is faster, Helio G25 or Helio G91?
CPU: a newer core mix gives the G91 an advantage
The G25 uses eight Cortex-A53 cores, all listed up to 2 GHz. The G91 pairs two Cortex-A75 cores at 2 GHz with six Cortex-A55 cores at 1.8 GHz, as reported by NanoReview. Peak clock speed alone does not describe processor capability: the G91’s newer, mixed-core design gives it a stronger basis for handling demanding foreground tasks while retaining lower-power cores for lighter work.
Do these 3 things before closing this tab:
1Repair Windows errors before they cause bigger problems2Fix the driver behind crashes, sound loss and screen glitches3Clear out junk files and repair common Windows errorsGraphics: the G91 has the stronger platform ceiling
The G25’s PowerVR GE8320 is listed up to 650 MHz, while the G91 uses a Mali-G52 MC2 up to 1 GHz. That points to a more capable graphics platform in the G91, but it does not translate into a guaranteed game frame rate. The phone’s cooling, power limits, software, game settings, and display resolution all affect gameplay.
#1 Best Overall
- 【MediaTek Helio G91 & Android 16 & 12GB + 128GB】2.0GHz 8-core CPU and powerhouse 12nm chipset, 6GB RAM (up to 6GB of virtual RAM) allows multiple memory-hungry apps to run snappily at the same time. 128GB of internal storage as well as TF card expansion supported 2TB. Paired with Android 16 for a seamless and lag-free experience.
- 【48MP+20MP+2MP+16MP Camera】Capture every moment with the Ulefone Armor X31's 48MP main camera and 2MP Macro camera. The 20MP night vision camera ensures you can navigate and capture in low-light conditions. The 16MP front camera enhances your selfies, and the underwater mode allows you to take photos and videos underwater, even when swimming or diving.
- 【6.56" HD+ 90Hz Display with Corning Gorilla Glass】The Armor X31 features a 6.56-inch HD+ display with a 720 x 1612 resolution, 90Hz refresh rate for smooth visuals. The display's 800 nits brightness ensures visibility under bright sunlight, while Corning Gorilla Glass provides exceptional durability against daily wear and tear, making it a robust choice for outdoor enthusiasts.
- 【6050mAh Battery + 18W Fast Charging】Packed with a robust 6050mAh battery, the Armor X31 offers an impressive 336 hours of standby time, 34 hours of talk time, and 25 hours of music playback. Charge quickly with 18W fast charging and use the reverse charging feature to power up other devices, turning your phone into a portable power bank.
- 【IP68/IP69K Waterproof, Shockproof, Dustproof】Designed for durability, the Ulefone Armor X31 is IP68/IP69K certified, allowing it to withstand being submerged up to 2 meters deep for 30 minutes. It's shockproof, enduring drops from up to 2 meters, and dustproof, safeguarding against dust, dirt, and sand.
What do the benchmark results show?
91mobiles lists the following comparison figures for the two chips. Its page describes the results as drawn from real-world testing of devices powered by the processors, but the comparison block does not state the benchmark version beside the scores. The page was accessed in 2026; that is not the date the tests were necessarily run.
| Chip | AnTuTu | Geekbench single-core | Geekbench multi-core |
|---|---|---|---|
| Helio G25 | 115,616 | 152 | 879 |
| Helio G91 | 265,150 | 412 | 1,448 |
These figures favor the G91, but they are site-reported device results rather than a controlled comparison using the same phone design, software, cooling, and benchmark version. 91mobiles describes the G25 AnTuTu result as the highest recorded among the G25 devices it tested. See its Helio G25 specifications and benchmark page.
Rank #2
- 【Armor Case】With anti-shock absorbent TPU corners and rigid plastic body, the protective case provides additional protection from drop, scratch and shock for your Ulefone Armor X31 Series.
- 【MediaTek Helio G91 & Android 14 & 12GB + 128GB】2.0GHz 8-core CPU and powerhouse 12nm chipset, 6GB RAM (up to 6GB of virtual RAM) allows multiple memory-hungry apps to run snappily at the same time. 128GB of internal storage as well as TF card expansion supported 2TB. Paired with Android 14 for a seamless and lag-free experience.(🧡Not compatible with AT&T or Cricket)
- 【48MP+20MP+2MP+16MP Camera】Capture every moment with the Ulefone Armor X31's 48MP main camera and 2MP Macro camera. The 25MP night vision camera ensures you can navigate and capture in low light conditions. The 16MP front camera enhances your selfies, and the underwater mode allows you to take photos and videos underwater, even when swimming or diving.
- 【6.56" FHD+ 90Hz Display with Corning Gorilla Glass】The Armor X31 features a 6.56-inch HD+ display with a 720 x 1612 resolution, 90Hz refresh rate for smooth visuals. The display's 800nits brightness ensures visibility under bright sunlight, while Corning Gorilla Glass provides exceptional durability against daily wear and tear, making it a robust choice for outdoor enthusiasts.
- 【6050mAh Battery + 18W Fast Charging】Packed with a robust 6050mAh battery, the Armor X31 offers an impressive 336 hours of standby time, 34 hours of talk time, and 25 hours of music playback. Charge quickly with 18W fast charging and use the reverse charging feature to power up other devices, turning your phone into a portable power bank.
A separate NanoReview page reports the G91 at 354,158 in AnTuTu 11, 405 in Geekbench 6 single-core, and 1,407 in Geekbench 6 multi-core. It lists fewer than three Geekbench samples and shows variation in user-submitted AnTuTu 11 results. Because the versions and methods differ from the 91mobiles comparison, these scores should not be combined into a direct ratio. They are a separate snapshot, not additional measurements of the same test. See NanoReview’s G91 benchmark page.
Display, camera, and video support
Screen limits depend on the phone maker
MediaTek lists the G25 for displays up to 1600 × 720. The G91 platform supports up to 2520 × 1080 and refresh rates up to 90 Hz. Those are chipset ceilings: handset makers select the actual panel, so a G91 phone may not have a 90 Hz or Full HD+ screen.
Rank #3
- 【Mount AM02】Thanks to the safety lock, the phone always stay in put even in high-speed driving. The double socket arm base is featured with a special theft-resistant screw. Once the screw is tightened, the bracket can not be disassembled while the angle can be adjusted by loosening the knob only.
- 【MediaTek Helio G91 & Android 14 & 12GB + 128GB】2.0GHz 8-core CPU and powerhouse 12nm chipset, 6GB RAM (up to 6GB of virtual RAM) allows multiple memory-hungry apps to run snappily at the same time. 128GB of internal storage as well as TF card expansion supported 2TB. Paired with Android 14 for a seamless and lag-free experience.(🧡Not compatible with AT&T or Cricket)
- 【48MP+20MP+2MP+16MP Camera】Capture every moment with the Ulefone Armor X31's 48MP main camera and 2MP Macro camera. The 25MP night vision camera ensures you can navigate and capture in low light conditions. The 16MP front camera enhances your selfies, and the underwater mode allows you to take photos and videos underwater, even when swimming or diving.
- 【6.56" FHD+ 90Hz Display with Corning Gorilla Glass】The Armor X31 features a 6.56-inch HD+ display with a 720 x 1612 resolution, 90Hz refresh rate for smooth visuals. The display's 800nits brightness ensures visibility under bright sunlight, while Corning Gorilla Glass provides exceptional durability against daily wear and tear, making it a robust choice for outdoor enthusiasts.
- 【6050mAh Battery + 18W Fast Charging】Packed with a robust 6050mAh battery, the Armor X31 offers an impressive 336 hours of standby time, 34 hours of talk time, and 25 hours of music playback. Charge quickly with 18W fast charging and use the reverse charging feature to power up other devices, turning your phone into a portable power bank.
The G91 camera figures need a qualification
MediaTek’s G25 page lists support for a single camera up to 21 MP, or a 13 MP + 8 MP configuration. The G91 product page promotes 108 MP camera capability, but its specification field separately lists a maximum camera ISP of 16 MP + 16 MP or 64 MP. The page does not reconcile those figures, so they should not be treated as interchangeable guarantees. In either case, the chip’s supported ceiling does not establish the sensor or camera configuration fitted to a particular phone.
For video, MediaTek lists 1080p at 30 fps encoding and playback for the G25. For the G91, it lists 2K at 30 fps encoding and playback, plus 1080p at 60 fps playback.
Rank #4
- 【Molle Holster】Provides superior protection against abrasion and drops, ensuring your device remains safe and secure. With the molle webbing and clips, it is easy to be attached to any your molle compatible tactical vest, backpack, belt, shoulder strap, and other equipment.
- 【MediaTek Helio G91 & Android 14 & 12GB + 128GB】2.0GHz 8-core CPU and powerhouse 12nm chipset, 6GB RAM (up to 6GB of virtual RAM) allows multiple memory-hungry apps to run snappily at the same time. 128GB of internal storage as well as TF card expansion supported 2TB. Paired with Android 14 for a seamless and lag-free experience.(🧡Not compatible with AT&T or Cricket)
- 【48MP+20MP+2MP+16MP Camera】Capture every moment with the Ulefone Armor X31's 48MP main camera and 2MP Macro camera. The 25MP night vision camera ensures you can navigate and capture in low light conditions. The 16MP front camera enhances your selfies, and the underwater mode allows you to take photos and videos underwater, even when swimming or diving.
- 【6.56" FHD+ 90Hz Display with Corning Gorilla Glass】The Armor X31 features a 6.56-inch HD+ display with a 720 x 1612 resolution, 90Hz refresh rate for smooth visuals. The display's 800nits brightness ensures visibility under bright sunlight, while Corning Gorilla Glass provides exceptional durability against daily wear and tear, making it a robust choice for outdoor enthusiasts.
- 【6050mAh Battery + 18W Fast Charging】Packed with a robust 6050mAh battery, the Armor X31 offers an impressive 336 hours of standby time, 34 hours of talk time, and 25 hours of music playback. Charge quickly with 18W fast charging and use the reverse charging feature to power up other devices, turning your phone into a portable power bank.
Are either of these chips 5G-capable?
No. Both are 4G LTE platforms according to MediaTek’s product information. Both list Wi-Fi 5 and eMMC 5.1 storage. MediaTek lists Bluetooth 5.0 for the G91; NanoReview gives a conflicting Bluetooth 5.4 figure, so the manufacturer’s specification is the safer figure to use.
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If the choice is limited to these two platforms, the G91 has the stronger published specification profile and benchmark results. But the processor name does not determine the whole phone experience. Compare the specific models’ RAM and storage, screen, battery, software support, thermal design, price, and regional network bands before buying.
Examples of phones listed with the G91 include the Xiaomi Redmi 13 4G, Tecno Spark 30, and Poco M6 4G. Examples listed with the G25 include the Redmi 9A, Redmi 10A, Redmi 9i, and Nokia G10. These are examples of devices associated with each chipset, not endorsements or claims of current availability. Sources: NanoReview G91 device list and 91mobiles G25 page.
Why the G91 is the better-equipped chip
MediaTek’s published platform information gives the G91 newer CPU cores, a higher-tier GPU, higher display ceilings, and more advanced video support than the G25. The available benchmark comparisons also favor it, with the important caveat that they are not controlled head-to-head results. For a real purchase decision, use the SoC difference as one factor and verify the specifications of the exact handset and regional model.
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