Compare / vivo iQOO 15 Ultra vs S2 FE
vivo iQOO 15 Ultra vs S2 FE
A side-by-side comparison of the vivo iQOO 15 Ultra and the S2 FE, covering display, chipset, memory, camera, battery and build.
Overview
Specifications
vivo iQOO 15 Ultra
- Technology
- GSM / HSPA / LTE / 5G
- 2G bands
- GSM 850 / 900 / 1800 / 1900
- 3G bands
- HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
- 4G bands
- 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 28, 32, 34, 38, 39, 40, 41, 42, 43, 48, 66
- 5G bands
- 1, 2, 3, 5, 7, 8, 12, 18, 20, 25, 26, 28, 38, 40, 41, 48, 66, 75, 77, 78, 79, 80, 81, 83, 84, 89, 91, 92, 93, 94 SA/NSA
- Speed
- HSPA, LTE, 5G
S2 FE
- Technology
- GSM / HSPA / LTE / 5G
- 2G bands
- GSM 850 / 900 / 1800 / 1900
- 3G bands
- HSDPA 800 / 850 / 900 / 2100
- 4G bands
- 1, 3, 4, 5, 8, 19, 28, 38, 40, 41, 42, 43, 48, 66
- 5G bands
- 1, 3, 5, 8, 28, 38, 40, 41, 48, 66, 77, 78 SA/NSA
- Speed
- HSPA, LTE, 5G
vivo iQOO 15 Ultra
- Announced
- 2026, February 04
- Status
- Available. Released 2026, February 06
S2 FE
- Announced
- 2026, October 06
- Status
- Coming soon. Exp. release 2026, October 20
vivo iQOO 15 Ultra
- Dimensions
- 163.7 x 76.8 x 8.7 mm (6.44 x 3.02 x 0.34 in)
- Weight
- 227 g (8.01 oz)
- SIM
Nano-SIM + Nano-SIM
IP68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min)
Pressure sensitive zones (600Hz touch-sensing)
Built-in cooling fan
S2 FE
- Dimensions
- 163.9 x 76.5 x 8.6 mm (6.45 x 3.01 x 0.34 in)
- Weight
- 224 g (7.90 oz)
- Build
- Glass front, plastic frame, plastic back
- SIM
Nano-SIM + Nano-SIM
IP68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min)
MIL-STD-810H compliant*
* does not guarantee ruggedness or use in extreme conditions
vivo iQOO 15 Ultra
- Type
- AMOLED1B colors144HzPWMDolby VisionHDR10+HDR Vivid1000 nits (typ)2600 nits (HBM)8000 nits (peak)
- Size
- 6.85 inches, 114.0 cm2 (~90.7% screen-to-body ratio)
- Resolution
- 1440 x 3168 pixels (~508 ppi density)
S2 FE
- Type
- AMOLED1B colors120HzHDR10+1000 nits2000 nits (HBM)
- Size
- 6.83 inches, 112.6 cm2 (~89.8% screen-to-body ratio)
- Resolution
- 1260 x 2800 pixels, 20:9 ratio (~450 ppi density)
vivo iQOO 15 Ultra
- OS
- Android 16, up to 5 major OS updates, OriginOS 6
- Chipset
- Qualcomm SM8850-AC Snapdragon 8 Elite Gen 5 (3 nm)
- CPU
- Octa-core (2x4.6 GHz Oryon V3 Phoenix L + 6x3.62 GHz Oryon V3 Phoenix M)
- GPU
- Adreno 840
S2 FE
- OS
- Android 16, OriginOS 6
- Chipset
- Mediatek Dimensity 7300e (6 nm)
- CPU
- Octa-core (4x2.5 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55)
- GPU
- Mali-G610
vivo iQOO 15 Ultra
- Card slot
- No
- Internal
256GB 16GB RAM, 512GB 16GB RAM, 1TB 16GB RAM, 1TB 24GB RAM
UFS 4.1
S2 FE
- Card slot
- No
- Internal
128GB 6GB RAM, 128GB 8GB RAM
UFS 3.1
vivo iQOO 15 Ultra
- Triple
50 MP, f/1.9, 23mm (wide), 1/1.56", 1.0µm, PDAF, OIS
50 MP, f/2.7, 85mm (periscope telephoto), 1/1.95", 0.8µm, PDAF, OIS, 3x optical zoom
50 MP, f/2.1, 15mm, 107˚ (ultrawide), 1/2.76", 0.64µm, AF
- Features
- LED flash, HDR, panorama
- Video
- 8K@30fps, 4K@24/30/60fps, 1080p@30/60/120/240fps, gyro-EIS
S2 FE
- Dual
50 MP, f/1.8, (wide), 1/2.93", PDAF
Auxiliary lens
- Features
- LED flash, HDR, panorama
- Video
- Yes
vivo iQOO 15 Ultra
- Single
- 32 MP, f/2.2, 21mm (wide), 1/3.1", 0.7µm
- Features
- HDR
- Video
- 4K@30/60fps, 1080p@30/60fps
S2 FE
- Single
- 32 MP, f/2.0, 22mm (wide)
- Video
- 1080p@30fps
vivo iQOO 15 Ultra
- Loudspeaker
- Yes, with stereo speakers (with Dolby Atmos)
- 3.5mm jack
- No
S2 FE
- Loudspeaker
- Yes, with stereo speakers
- 3.5mm jack
- No
vivo iQOO 15 Ultra
- WLAN
- Wi-Fi 802.11 a/b/g/n/ac/6/7, dual-band, Wi-Fi Direct
- Bluetooth
- 5.4, A2DP, LE, aptX HD, aptX Adaptive, aptX Lossless, LHDC 5
- Positioning
- GPS (L1+L5), GLONASS (G1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5)
- NFC
- Yes
- Infrared port
- Yes
- Radio
- No
- USB
- USB Type-C 3.2, OTG
S2 FE
- WLAN
- Yes
- Bluetooth
- 5.4, A2DP, LE
- Positioning
- GPS, GALILEO, GLONASS, QZSS, BDS
- NFC
- No
- Radio
- No
- USB
- USB Type-C 2.0, OTG
vivo iQOO 15 Ultra
- Sensors
- Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass
S2 FE
- Sensors
- Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
vivo iQOO 15 Ultra
- Type
- Si/C Li-Ion 7400 mAh
- Charging
100W wired, PPS, PD
40W wireless
Bypass charging
S2 FE
- Type
- Si/C Li-Ion 10000 mAh
- Charging
44W wired
Reverse wired
vivo iQOO 15 Ultra
- Colors
- Black, Silver
- Models
- V2546A
- Price
- About 730 EUR
S2 FE
- Colors
- Stellar Green, Zen White, Titan Black
- SAR
- 1.14 W/kg (head) 1.00 W/kg (body)
- Price
- About 360 EUR
How the vivo iQOO 15 Ultra and S2 FE differ
- The S2 FE has a larger battery, 10000 mAh against 7400 mAh on the vivo iQOO 15 Ultra.
- The vivo iQOO 15 Ultra has the bigger screen, 6.85 inches against 6.83 inches.
- The vivo iQOO 15 Ultra offers more RAM, up to 24 GB against 8 GB.
- The S2 FE is the newer of the two, released in September 2026.